To be honest, I'd like to see Sony + Nintendo team up and collaboratively make a unified console platform + cell phone/tablet portable platform with physical controls.
I'd never have to buy multiple consoles/handhelds ever again, there would never be a lull in releases or a weakness in library, and imagine the Smash Bros. roster.
Nintendo is still my favorite publisher on the software side and they still have a certain magic about them, but I just like Sony's hardware phiosophy and willingness to try out new franchises more often a lot.