I saw the discussion about Assist Trophy happen here, and well, just wanted to add my own opinion about it
While I don't think it impossible because the system is litteraly there to allow AT upgrades without troubles, I don't think it "likely", BUT! That doesn't mean I would give up on my Most Wanted, who is an AT, and I think that this mentality that support "doesn't matter" because they are an AT is just wrong... Ridley, K Rool, Isabelle, Chrom, Dark Samus, those were all characters that had a Non-playable role last time, and that got in next time thanks to fan support, if people listened to the pessimistic approach of "Stop supporting them, they have a role", we wouldn't have gotten half the fan requests we have today on the roster, so today, like I did in Brawl, like I did in Smash 4 despite her AT, and like I do since Ultimates reveal, I'll be there to support Midna, and make a difference in her popularity, even if she's an AT
It's not the developers that make Assist Trophy a "Kill List".... It's the fan base