User blog comment:ArtDraw12/TD Theories: Who May Return in Potential Future Seasons?/@comment-5231983-20160613225414/@comment-31556666-20160614003658

I really think that Amy being a main antagonist would be a really bad idea. A main antagonist of a season is usually cunning, manipulating, and can do big things to aid themselves. All of the main antagonists thus far have done these at least once. But Amy is not presented as a cunning kind of villain. Amy abuses her sister publically without thinking of consequence, focuses all her time on her sister rather than helping with challenges, and she's too loudmouthy to be manipulative. I guess she had Rodney in love with her but it's not like that was any of her doing. She's too foolish and hasty in her decisions. I know that's the reason Mal is so awful but he was at least presented as clever.

Amy may have convinced a majority of Kinosewak to vote off Samey, and she did manipulate them into hating Samey by making her look cruel after crying from standing up to her, but Amy does all these things after actions Samey does that will clearly backfire. I can't see why they would turn a tertiary antagonist into a main one.