The guy from Macro Tactics replied to some comments on the previous strip and looks like the final art is a placeholder, assuming the art is as good as the original Advance Wars I'd say they'll be all pretty similar. Macro Tactics for people who want a perfect clone, Tiny Metal for those who prefer 3d for whatever reason and Spellbound (I don't know the official name ok?) for those who prefer a different spin.

And you can always play Xcom2 Long War which will probably last long enough for one of those games to be finished.