whatever on 04 August 2007
It depends on when it comes out. If it doesn't come out till 2012, then it will be more powerful than any of the current gen systems, will contain a HD drive (likely Blu-Ray at this point), and enhanced motion technology.
By then I would guess MSs next system would be out also. I'm sure it would have more "power" than the new Wii, but it won't be as big a difference as this generation.
As for PS4, no idea when that will be coming. I would doubt it would be before 2014.
