I don't know.
Lebron's always seemed to be pretty independent, and focused on his own goals. A giver, but only when it really suits him.
Wade seems way too high maintenance, and maybe a little clingy.
I just don't think they'd work out together. I'd give them 6 months, tops.
And you just know Melo would try to get with one of them on the rebound, that little skank.