It could have an opposite effect though, Pushing more players away than it keeps. Capcom just hasn't been good at balancing games in the past few years. Players should savvy enough by now when Capcom 're-balanes' something it can make a much bigger mess than what they started with. I'm expecting the game to either be amazing or unplayable, well more so unplayable.
I find it very unlikely that 2012 will push any players way, most SF players have been clammering for a rebalance since Yun was playable.
Almost all the characters got buffs, so unless you have been playing one of the top S tier characters it shouldn't be a problem.
I'm not sure if it's that TTT2 info is swirling around or what but I've found myself playing some T6, I was wondering if anyone would be interested in playing some games? I'm far from a great player but I would love to get in some games.