It's cute that you think you'll get 1080p with msaa in a 32MB framebuffer on xbox, or that you'll get msaa with deferred shading on ps4 for that matter.
Seems the only way to get decent image quality next gen will be SSAA like in planetside 2 or metro last light or Arma. And for that you 'll need a powerful pc, not a hd7850.
Then 2 years in they'll feel the need to push effects and post processing crap to add more noise and clutter to give the perception of 'better' graphics , just like they did this gen, and then the framerate will be the first thing to go, again....
We can only hope ps4 and xbox will NOT 'keep pace' with pc graphics but will for once in console's miserable lives try to keep the framerate steady, the image quality intact and the not cut off frames, so that we can all enjoy untainted gameplay.