And also a motion sensor built into the remote control apparently. Wiimote Apple style anyone??

Is Apple interested in investing their own money to build studio and support third party? No?

Console spec is largely unimportant as long as they can push their product to enough people and create large enough audience,

They are not interested in pushing it that hard, and their sale is about as bad as Wii U as a console.

You know, I can't find reasons why I should be excited at all.

With Apple entering the gaming industry the industry will have a very tough time
R.I.P gaming industry

I thought the Apple TV has been out for several years now...

And the Apple TV already has games... But I don't remember the last time a AAA-budget blockbuster game was announced for the platform.

Apple could trounce Sony, Nintendo, and MS if they really wanted to. They sell a bazillion games on iOS without even trying. Don't poke the sleeping bear. 

Luckily for Sony/Nintendo/MS, Apple looks at the dedicated game business (and rightly so) as small potatoes. Apple shipped 47.5 million iPhones in the last quarter (that's 3 months). That means in three months they ship the same amount of iPhone hardware that the PS4 + XBox One + Wii U *combined* have taken several years to ship. 

If Apple really wanted to dominate this market, they likely could do so very quickly, their marketing and brand appeal is simply light years beyond the players in the current space and they would get a shit-ton of third party support overnight. It's just too far under their radar for them to care too much. 

U act like Apple is some unstoppable force that can dominate any and all markets they enter, if that were the case than Apple TV wouldn't have only sold 25 million over the course of 8 years. I believe Apple TV 4 will be a bigger success than previous generation models but let's not act like it's a guaranteed console killer.

U seem to have that mindset where things have to beat other things and that's not really how it works, multiple devices can easily coexist with one another.

Flappy Bird >>>>>>>>>> MGS 5

AppleTV hasn't been a priority for Apple, it's just a little accessorie product they make on the side of their main business. And they've still sold quite a few of them. Steve Jobs in particular never really cared much for the game market and that's likely why Apple doesn't view it as a priority. 

If they really wanted to, don't kid yourself though, they would make Sony/MS/Nintendo sweat seriously and they would certainly get a massive amount of developer support. EA, Square-Enix, Activision, etc. all those companies would jump all over a real dedicated Apple living room media/game console, they're already all over the iOS platform. 

The reason why Apple is priming the AppleTV for a bigger place in the product catalog now is they are moving into the digital TV distribution business, a streaming Apple tv service is coming next year apparently, and that means AppleTV is going to have to take a bigger role. So you'll probably see a much larger push for AppleTV this fall whereas before there wasn't really anything. 

Your living in a fairy land. Apple usually fails or meets with mediocre success at most markets they enter, people just tend to forget that due to a few runaway successes, they have just had some very VERY big successes to over shadow there abundant failures. You only have to look at the recent iwatch to see a dismal failure despite the massive hype and investment from apple. Apple TV has been mediocre at best, then you have stuff like apple maps and the list goes on and on. even if Apple decided they wanted a big slice of the console pie it would take years and years to even get to a competitive status let alone dominate, gamers are also very particular caring more for games than apples approach of less features and function but clean interface.