It's a shame that there won't be any mega evolutions. Why do you think they'll cause you legal trouble any more than other newer costumes will? Is it because Zard X and Mega Lucario are (final smashes?) in Sm4sh? If so, is Mega Charizard Y at least fair game? He doesn't seem to be in Sm4sh. Just curious.
Anyway, the new costumes look great. I was hoping for Sacred Treasures Pit, but I guess there's still a chance for that. Also, is it possible to see Yarn Yoshi, or does he not have any costume slots left?