I'm torn between the stretch goals. By one side, they are not bad. I like the new voices, models, and creep tier rewards.
On the other side, there is this lack of "you got something special" coming. If they give Nightstalker new voice lines, everybody gets it. If they remake Sladar model, every player benefits from it.
Still, I don't think they are BAD rewards, and it's better than tying a hero to it because we all know new heroes are coming anyway as fast as Valve can and rushing it because people paid money (no matter how much) will only end up on a rushed, half-finished job.
I still won't mind a beach themed map unlock where we got a tropical setting with palm trees and everybody in swimsuits.