G&W's windboxes, at least on Uair, will most likely be removed to prevent the potential 0% kills off them.
The move won't be as useful, but he has so many options already available that he won't really be missing it.
Not positive on Up B though. If you get rid of the windboxes on Up B it would probably actually be a buff to the move, because more often than not the windboxes will just fling your attacking opponent up with you as you try to get out of a sticky situation.
I can't count the number of times I will Up B my way out of a Captain Falcon combo only to have him ride the windboxes up to me and still land the Knee.
Dair is already returned to Melee status. And it ***** hardcore when you have full control over the key. And if he wanted to replicate Brawl Dair he just has to fast fall it yourself... Thanks Melee for having strictly better versions of moves
With a few minor exceptions (Uair, maybe his throws?) G&W is basically set. He doesn't have to deal with the terrible defense from his Melee counterpart, and he doesn't have to deal with the terrible ability to kill reliably from his Brawl counterpart. The man is a death machine.