Probably by the end of the year, doesn't really deserve it though, such a boring and bland game, but I guess that's just me.
I've noticed it hasn't budged in price yet, even though I'm not a fan of the game it's still something I'd like to eventually have in my collection, but EB in Australia still has it $90 and a quick look on the US Gamestop site shows it at $60. It has plenty of room for improvement and it's still selling around 20k a week, so I'm sure it'll eventually it that 8 million sometime in 2012.
People should have bought Modnation Racers and Blur instead, now those are fun racing games.