If not Groves II, Kessler III if Mikkel will have it. (rumor is he will retire as he always said he would upon becoming a father, and his girl is up the duff...) Froch vs. Chavez will be the same kind of unnecessary one-sided beating Pacquiao vs. Rios was.
I have my doubts that Froch will give Groves the rematch. I bet he takes the easier option in Froch v Kessler III