FFXIII alone could guarantee this, but Nintendo is making a big push with NSMBWii, Tales of Graces, Samurai Warriors 3, and TCB. That's going to produce some strong, consistent results through the end of the year, while PS3 will see some lesser boosts from games between now and then, they won't see their zomg boost until FFXIII
It just depends on exactly how much FFXIII really does.
Monster Hunter: pissing me off since 2010.