No. He won’t.
They dispise each other.
Yes, they despise each other. Obama will still do it, for the same reason that he and Michelle are out campaigning for Hillary: for the good of the party and advancing the leftist agenda. The prosecution of Hillary would be too damaging to the Democrats.
And, you are correct.
So, why did he allow Lynch and Comey to give her a pass? Why is he and the wookie out campaigning for her? It is obvious that he wants her to succeed him. Why?
Because if Trump is elected the whole rotten structure might come crashing down on all of them. That possibility is more important than personal hatred.