Even with Dominguez attached to Stanton, you're still in the hole value-wise. We're talking a Kris Bryant-type value (WAR vs Contract)and then some.
I have Stanton, in his current state, at a -55.2 value and Dominguez comes in at 33 being the 54th-best prospect in the game, according to MLB.com.
Stanton's contract is a killer, and as MrSerendipity said, the Yankees aren't going to attach a potential generational talent to a trade to get out under a bad contract.
From Bard's calculations and from a realism standpoint, there's no realistic trade involving Stanton right now.