XB360 and Wii U are actually quite similar. Closer than 360 and One in some ways. The reason they are porting to 360 is there a big bulk of mass market users still gaming on that as their primary system, so it's easy money. PS3 owners are adopting PS4 at a rapid rate.
The whole "only possible on next-gen" is a total joke, it's amazing anyone believes it. The older systems can play the new games, just with lower resolution, frame rate, draw distance and/or detail.








