The key issue with a Miami return is the Wade salary slot and the issues he's having at this point in his career. That IS the issue. Otherwise, they just resign LeBron to a max, give Bosh a solid max type deal and go for a third star and filler parts.
Wade is the drain clogger there. It's probably better for LeBron to gamble on young guys like Kyrie, Wiggins etc than to rely too much on an expensive Wade. Hope this is all over by the weeks end. Too much drama. Pray for Cleveland.