He has contract issues and hasn't been allowed to fight in the US. I think that's over with though so he'll probably start to get more exposure next year. Also, it looks like the WBA is finally is going force Felix Sturm to fight Golovkin next.
Sturm would be smart to try to unify with Geale. Everybody wins, except Golovkin and Sturm haters. Not that Sturm is a sure thing against Geale or any live body, but likely wouldn't get an ugly beating.