There’s only 1 evil one we know of so far, and she’s gone. Her son is carrying the rest of the weight.
Blue and yellow don’t need redemption because they never did anything wrong by their book and standards to begin with.
I’ve mentioned it before, but again when yellow and blue actually realize that Pink still exists I some form, they both immediately stop with absolutely no hesitation. Evil characters wouldn’t do this.
The only bad one that needs redemption is already gone. That’s how I see it anyways.