I agree and disagree at the same time ...
The technology behind high detailed graphics has advanced far faster than our ability to produce games that take advantage of it in a cost effective manner; and we're hitting a point where there is no real reason to put any (real) effort in pushing graphics to be dramatically better. If the only reason to release a new console was to get prettier graphics and everyone was just going to follow the XBox 360/PS3 model over and over again, there would probably be no reason to release a system after the PS4/"XBox 720" are released.
Fortunately, as the Wii demonstrated, there is more to videogames than simply visuals; and, while it could be argued that these improvements could be handled as addons, many improvements that I can think of would (probably) require substantial increases in processing power. Although I have several examples of ideals I think have value, being that it is beyond the capabilities of any hardware (we could produce in a cost effective way) to generate high quality graphics at 1080p while rendering to 4 Wii U like controllers I doubt that next generation consoles will be able to handle a lot of the theoritical UI devices that could be produced 8 to 10 years from now.







