Not retire.
With all teams racing on the same brand of rubber next year (not knowing yet if different grades will be offered at each track) Schumi will be chomping at the but to show the world that when tires are equal, he's a better driver than Alonso. Plus the fact that Mclaren/Mercedes can't seems to go 3 races in a row w/out some sort of catostrophic failure happening...Schumi is (pardon the pun) in the driver's eat!!
Mark Webber to Red Bull...hellllooooo??? The race is...thataway...