That's a link explaining that the WBC will order the Bika-Sjekloca winner to fight Bute in May. That also says negociations with Pavlik are going nowhere.
In a radio interview, Bute's promoter said that he was in very good terms with Eddy Hearn. I think Bute's plans are now to gain the WBC belt and then to make a big unification fight with Froch, if he wins against Kessler. Froch's plans are to avenge his defeat against Kessler, win his WBC title back against Bute and then face Andre Ward. Both men can help the other one to reach their respective goals: to avenge their defeats and unify the titles.
Froch has to win against Kessler though.
i don't see how Pavlik could help Bute better than the previous scenario.