Announced at 2013 E3, Launched sometime 2014. No way Sony will wait till 2015. NO WAY

I think it is quite apparent given Sony's recent acquisitions. That they have no intention of ever releasing another console into the market. Firstly they don't have the capitol to launch another console. Conservatively speaking it would cost the company upwards of a billion dollars up front for just the initial run. Even if they could muster the cash to make a go of it. They couldn't afford the losses on their quarterly statements. Investors won't care why Sony is in the red. They will just care that it is still in the red. Which will lead to a massive devaluation on the stocks as investors try to get out.

Secondly Sony acquired a cloud gaming service, and there is no reason to be buying a competing product. Unless that is the model they intend to go with for gaming. Whether it would work or not is somewhat immaterial. What matters is the overhead on such a strategy is lower then consoles. With far less associated risk. If it fails Sony can just sell off the servers, and port their software to other platforms. They would lose some money, but not as much as they would if a new console venture failed. Which might not just lose them money, but actually speed the demise of the company.

Thirdly Sony is upping its investment in mobile devices. Hey cloud gaming and mobile devices kind of go together. Is anyone seeing a trend here. I am not saying its all brilliant, but at least there is a coherent train of thought here. Once again mobile devices have a lower overhead then consoles.

Fourthly Sony is liquidating game studios like it is going out of style, and they aren't replacing them. They aren't buying new studios, building new studios, or expanding existing studios. While Microsoft is doing the exact opposite. You have to see that doesn't make any sense. Unless they aren't going to be responsible for balancing out a library, or attracting new customers with exclusives. Which they wouldn't have to do with mobile gaming or cloud gaming.

I mean everything points to no new console coming.

Spring 2014 in Japan, to avoid conceding an excessive head start to Wii U there and to exploit Golden Week 2014.
Q4 2014 in the rest of the world, where a launch would work better in that season.

Edit: @Dodece:

Applying strictly your reasoning, they won't ever launch any new product anymore.

1. The aquisition of Gaikai cost $380. Sony sold $1.9 billion of convertable bonds to fund this and OTHER expansions. I think they've already found the capital.

2. Simply because they aquired a cloud gaming service, it does not mean that they plan on going 100%  cloud in the next few years, the infastrature is not readily available for even the vast majority of the rich, western population to be have this content work in a way which replaces console gaming. 

3. Of course they have been investing more into mobile, so has every other eletronics company in the world. Cloud will provide some very cool opportunities for mobile devices and especially any dedicated Handhelds, but popular mobile device don't have any buttons, so this doesn't need be discussed any further. 

4. They're removing all of the companies who haven't produced successfull games in a while, whilst they're core teams (there are still a lot) are expanding (Naughty Dog is now 2  teams). We also do not know that they are not working with even more developers. Sony do not necessarily own the developers who make exclusives with for them (quantum dreams, insomniac).

5. By "everything" are you opting to ignore hundreds upon hundreds of articles reporting new versions of Orbis Dev kits, game development and leaked concept documents.

Fall 2013, mark my words.

Mid-late 2014, if ever.

I predict a late 2013 launch, at least in Japan. If Japan is the only country to get it in 2013, then it should get a WW release in Q1 2014. Of the rumors we have gotten lately, only one system has been pointed at for maybe having a full 2014 release, and that's the NeXbox. Had something to do with them getting poor yields on their CPU production. If this is true, and MS doesn't want a repeat of RROD, then will probably be releasing mid-late 2014.

1. That logic might work if the reason for the issuing of the bonds had not been specified. They were released to fund acquistions, and to expand imaging sensor facilities. These are Sony's words not mine. So you still need to find a billion dollars somewhere, and while Sony has cash reserves. The reason they issued these bonds in the first place. Was so as not to cut too deeply into them. Those reserves are after all proof that Sony can pay off its short term debts

2. Your probably giving Sony more credit then it deserves, or is it less credit then it deserves. Your laboring under the assumption that Sony needs total market penetration on day one, and that isn't something they even get with consoles now anyway. That hasn't stopped Sony from selling their consoles in market with poor broadband. Hell it didn't stop them from selling a wireless internet enabled console in markets where that technology was far from the norm. The point being that they don't need to have a hundred million users on day one. They can just exploit improvements in infrastructure as they arrise.

3. No they have keypads, touch screens, arrow keys, and tilt sensors. Unless a game has a terribly complicated control scheme. You can play it on most portable devices. I can't believe you even tried to make that argument. Besides your missing the point in that Sony isn't a company that has the resources to be out there playing the whole field. Kaz Harai said it himself they would start to focus their efforts.

4. Where have you been this generation. Microsoft has stolen most of Sony's third party exclusives, and has even lured Sony's second parties into developing for the Xbox. What did you forget that Insomniac is developing a game for both the 360 and the PS3. You might have a point if you were talking about Microsoft, because Microsoft is willing to fund third party exclusives. Sony has stated publicly however that they refuse to do such a thing. Here don't take my word for it here is a direct quote.

"We have a very different approach to exclusives than some of our competitors. We don't buy exclusivity. We don't fund development. We don't, for the lack of a better term, bribe somebody to only do a game on our platform."

Right now Sony has about sixty percent of the strength that Microsoft has in first party studios. Sony doesn't have a lot when compared to Microsoft. Which has according to Wikipedia seven more studios then Sony. Closing studios doesn't make Sony more competitive. It makes them less competitive. At their current rate of attrition. It is conceivable that Sony will end up having at best one exclusive for every two that Microsoft will have. They don't need to match title for title, but they need to be closer to be competitive.

5. You shouldn't listen to rumors. Ask around I accidentally started a rumor on these forums no less. That was reported on a hundred different sites, and was even responded to on television. I even said in the body of the post that it seemed like complete bullshit to me. Yet somehow I became a reliable enough source to make headlines. The point of the story is the gaming media has almost no journalistic integrity. The fact that they print rumors should be proof enough of that. Once one of them reports something. That seems to be all that it takes to get the ball rolling. So all you really need to start a rumor is to have a bullshitter with almost no skill.

Look rumors can be fun, but any volume of them is never going to be a substitute for hard facts. These stories aren't independently verified. One guy reports on a rumor he heard. Which he may have well just concocted all on his own, and every site out there just copy pastes that story.

Are you kidding me ??? PS3 easily 2-3 years left. Potnetially 50+million users yet to purchase it.

PS3 with blu -ray, huge HDD with best exclusives and classic PS2 in HD with trophies is by far the best console to get to any new comer to gaming. Now affordable too. I will not be surprised to see ultra slim PS3 in 2 years time TBH. Pretty much all games will be avaliable on PS3. Sony is going to support PS3 unlike others.

PS4 is not coming before 2014 for sure. May be even 2015. It will be a class of its own though. Far superior to 720, but I think 720 should be better than Wii U

I think early 2014. While risking low sales before the holidays kick in, that timing provides them leverage for sales and bundles, as well as timing software releases for optimal impact.