I think Hank might be desperate enough to work with Jesse and Jesse, at this point, probably hates Walt as much as anybody. And, IIRC, in that final scene he seemed to realize it wasn't Pinkman who did the call, it was Walt. Things might be tense between them, but I wouldn't shoot down the idea of a Jesse/Hank team-up. I don't think they're that far gone from working with one another.