I do fear something like Wade and Melo going to Cleveland on near minimum deals and the league barreling towards a 4th straight finals matchup. I would be done with the NBA for a while if that happened. I would also not entertain any legacy discussions for the players involved (in a positive light) cause that is just a mockery of the league (more than it already is)
That'd suck, but I really don't see Carmelo accepting a buyout. I think he'll play out next year, exercise his ETO, then ring chase from there.
I also think it's unlikely that Wade opts out. IIRC, his recent divorce really drained him of money, which is one of the reasons why he was so set to make as much as possible this year. He also already has his three rings, so he's not nearly as desperate as someone like Carmelo.
I could see them revisiting the Love for Carmelo deal this summer, though, even though it doesn't really make sense at this point. Lebron will get what he wants if this series goes badly. I could see them doing something like a Carmelo and Lee for Love and Smith deal.
I'm actually a big Lee fan, and I think he's a much better fit at the 2 there than Smith, all while being a bit cheaper, too. I think Love to Melo is overall a downgrade, but Love has always been the scapegoat of the group.