I wonder if the Gen will even be 6 years long^^

Easily so ...

There's no good reason to believe that this current generation will be shorter than the last generation ...

This time around both Microsoft and Sony will really start sticking to 10 years before they introduce a new platform to the market ...

It's not like it'll matter much. The PS2 sold until 2011, near the beginning of Gen 8. PS3 and X360 are still selling, even when PS4 and Xbone are getting real next-gen exclusives.

The 8th gen might be short, but PS4 will still sell.

Playstation never was a casuals console

I can see the PS4 outsell the PS1 by a small bit, but nothing beyond that!

It will depend on how fast they can get PS5 to be a cloud based console/service. If they can convert PSNow and get it ready in a 3-5 years then PS4 won't make it to 100m. This would be the best case scenario for Sony.

You think I am not this time?

Well, we have a set of parameters (which also apply to me) why one would choose a console over a PC and I don't want to repeat them as we all know how these discussions and dependencies work and probably had them before many times.

I just want to say that, although we had several gens now, we don't know how close connected tech is with success really as consoles always had a (subjectively) small advantage considering PC tech. This gen, there is no advantage besides of "bare metal" apis which can't compete with better PC hardware which is even more not counting with DX12. 

We have to wonder if devs are still willing to prefer consoles to "gimp" PC versions or if they are to take more advantage of what PC can do so to make console versions "appropriate". This is already in some way happening and we  already started the gen.

Perhaps people don't care taking less resolution (which would happen, of course) or don't mind having less IQ as we don't know how much people care about advantages and disadvantages about PC gaming in general. 

To me, again, I don't care. I will always prefer consoles gaming for several reasons. But if tech overtakes the consoles (which happened already before release of the console, mind...) I guess both MS and Sony are forced to release "something new" (PSNow, perhaps, although I doubt network tech is there in the next 10 years) to compete with tech in general.

Mobile? Well, to me this is just a different market because I look at it how I see it and mobile gaming is a nogo for me :) But I don't know how much it could possibly steal from the main market. I just hope it attracts people like the Wii did while not taking too much from the "core" market.

Its pretty likely that PS4 will fly north of 100 million. So far Sonys track record is 2/3 and all indicators point to a dominant return; morpheus probably won't do much to bolster sales but it will introduce that format to a core group of people who will ensure that VR will ultimately become the future.

PS2 is after the Wii the king of casual.

Even PS4.

I think with a shrinking console market, PS4 will end up like the Wii. It will sell like crazy for the first 4 years, then interest will start waning. PS4 will have better legs, but won't sell as high in 2014, 2015, 2016 as Wii did in 2007, 2008, 2009. So they'll probably end up about equal