Yes, that makes sense. The Wii, which is selling like hotcakes, will receive a sequel in 2 years.
Sony, which could lose this gen because it released after the competition, will release after the competition.
Microsoft, which forced a new gen early and got RROD as a result, will force a gen early.
Do people get paid to write this stuff?
My predictions:
-PS4: Mid-2012
-X720 (they won't call it that): Late 2012
-Wii2: Early 2013.