No simply put no they won't. PS3 and 360 are both obsolete now and game developers are ready to develop on new hardware. We know Microsoft's nextbox is coming by spring 2013 at the latest meaning no two years. Fact is I am still pretty sure next box is coming this holiday season if it doesn't make this holiday season Microsoft intended this season and just couldn't make the deadline.
Sony might wait till late 2013 but early 2014 will be the absolute latest and that too won't be two years.
None of the competitors will sit by and let Nintendo get a year or two head start. Heck we don't know the full power of the WiiU. In fact I still have not heard Nintendo has given out the final kit. I suspect Nintendo's final kit will be delivered at E3.
Wii was considered a last generation console by many but guess what it kicked everyone's ass. Microsoft is not going to be stupid they will counter Nintendo as fast as they possibly can also considering Microsoft's console isn't likely going to be a massive graphical upgrade itself they cannot give Nintendo a year head start let alone two.
-JC7
"In God We Trust - In Games We Play " - Joel Reimer
