They don't have to do shit. They choose to.
Sony does just fine, still cranking out major new IP exclusives for PS3 this year.
I just have my doubts on Microsoft casting that cashcow aside with a new console. I'd be delighted if they were able to refocus on the core but who knows nowadays. The rumors aren't doing them any favors either.
First off if that's how you feel then simply keep playing your PS3 and buy a PS4. What else is there to be said.
But, like a couple of folks clearly pointed out, that Micrsoft is making perfect sense releasing their heavy hitters late in the cycle.
You won't acknowledge that the 360 is going on it's 8th year and Sony is going on their 7th.
You claim that only Sony is still cranking out 'major new Ips' but let's look at the whole picture.
The last major new IP Sony released was 3 years ago with Heavy rain, which is the same year as Alan Wake on the 360.
The two Ips everyone says are being cranked out are Last of Us and Beyond.
Naughty Dog release Uncharted 1,2,3 back to back 2 years in between and now they have a new team led by the Enslaved Lead designer who will is now releasing Last of us a year and a half after Uncharted 3.
Microsoft did something similiar where Turn 10 released 3 Forza Motorsports back to back with two years in between. They then partnered up with Playground games and released Forza Horizon, which although wasnt a new IP or a sequel they chose to develop it as a spin-off.
a year later.
Beyond has no release date yet. But even if it is released in say September of this year we are talking 3 and a half years after Heavy Rain.
In summary, others may understand why MS ended the gen releasing it's two most beloved franchises, Halo 4 literally it's most expensive game in Xbox history, while gamers still get to play State of Decay, Loco Cycle, and Ascension: New Gods on XBLA .
While in the same exact year, releasing a new console and a bunch of New Ips that people are claiming that MS hasnt released.
Makes sense to me and the millions of Xbox core gamers that stand at midnight picking up the games.