I've never bought a console on day one before, but I think I may grab a PS4 at launch. Really depends on what their lineup looks like. I can put off next gen for quite a while with the fucking backlog I've got.
If that's not complete bullshit, maybe I'll be interested in the X-bone. The 360 really only interested me because of the good chunk of (albeit mostly shitty) exclusive JRPGs that had early in the lifecycle.
At E3 Sony will say that after much soul searching they are pleased to announce full backwards compatibility for PSOne, PS2, and PS3 games. The 'no backwards compatibility' was a bluff. Microsoft took the bait.
Won't happen, but I would laugh pretty heartily if it did. The enthusiast press keeps talking about a blood bath. I want to see one.