Right now, you can only see their non-corrupted forms for a few seconds after ulting or recalling. I think they look amazing!
Regarding to feedback so far, a lot of players are a bit thrown off by these dark designs, which look cool nonetheless, but definitely radiate a quite different vibe. Just like me, they were excited about the classic Star Guardian look they love and anticipated.
Creating a toggle option (just like Kai'Sa's or DJ Sona's) for their pure forms that have already been created shouldn't be that much work and as it is completely optional, everyone should be fine with it. I don't think the community would care that much if their voicelines don't quite fit their bright designs either.
What do you guys think?