User blog comment:ArtDraw12/Art's predictions regarding TD6/@comment-24784093-20170514095845/@comment-11883116-20170514191124

Well, Courtney was a minor antagonist in a few episodes of Island, second half of TDWT, and a few episodes of TDAS too. So I guess as long as it's not being the main one again, they can expand it. Although with Mal (2nd gen contestant) being the main antagonist of TDAS and no 1st gen main antagonist after TDWT, I guess someone from third cast could be the main one. The problem is:
 * Scarlett wouldn't succeed even if she competed due to her cover already being revealed.
 * Sugar already was one.
 * Amy isn't strategic enough and would be antagonistic only towards Samey and her friends.
 * Dave isn't strategic enough and would be antagonistic only towards Sky and comic reliefs.

But I guess it will be forgiven in Amy or Dave's case for the sake of main antagonist from third gen. Maybe their antagonism improved since the last time?

As for Eva, she isn't a bad person. I just like to include her due to promising revenge in No Pain, No Game and most likely being mad about not competing for so long (remember her reaction in Celebrity Manhunt's Total Drama Action Reunion Special?).