I think that some other people have got it right in another thread.
you have to look at it compared to the declining trend that is hitting all consoles. So if a console is able to stop or temporarily (because let's not kid ourselves) turn that slide, then the expected drop should also factor into the "hardware boost".
And all in all, those two games together only launched as 1 game, seeing how Killzone didn't get Japan and Yakuza didn't get US and Europe.







