Our attitude towards spoilers is that they are purely speculative until proven otherwise, but Michael Ausiello of TV Guide claims that a pretty big bombshell will be dropped on Grey's Anatomy fans in upcoming months.
Earlier this fall, Shonda Rhimes hinted that a Grey's Anatomy wedding was in the works, and while no one will confirm it, one well-placed mole tells Ausiello that the identity of the engaged couple will be made during the February sweeps week: George and Callie.
Why do you suppose O'Callie - still broken up as of the last episode and struggling with myriad emotional issues - would rush into wedded bliss so quickly? We'll have to see if this rumor holds up. Regardless, it's always fun to ponder... and these two certainly made a cute couple.