Here's an unlikely blockbuster, but this could be a beneficial trade:

Dallas trades Dirk Nowitzki (before he exercies player option), Erick Dampier, and JJ Barea to

Toronto for Chris Bosh (signed at max by Raptors) and Hedo Turkoglu

In such a deal, Dirk exercies his option, Toronto buys out Damp's contract, and does whatever they choose with Barea (either exercise his option or not, it doesn't make a difference in such a deal). Then we resign Dirk to a max contract.