Heres another thing, what do the cavs want in return. Usually when teams trade a superstar away its to acquire picks and young players. Lebron won't want that.
This was always the one valuable piece they had (along with Love) to try and get back the future they threw away so they can win now in Brons era. I think the safest thing to do is to try get some young players/picks for Kyrie and prepare for doomsday. They have to read the writing on the wall this time