While it is good for a comedy act imagine doing this for 8 hours. Plus it would totally disrupt the whole set.
If I'm being honest I'm totally fine if they ditch the cosplay here. We don't even know if the characters will live to see the live show and to do cosplay last minute because your character died last episode is not ideal. Hell, we don't even know if they'll last during the live show. And I'm saying this as a Parteon pledge. I will be happy if they focus on making the show better (not saying the first one wasn't great!) rather then dressing up right now. OR just keep it very simple with few token items like a helmet for Gassy, Robin Hood cap for Sean, something furry for JP, sun pendant for Dan.
I see proper cosplaying more viable if we have Blades live show or even one of the one shots like Masks, doing non-humans really is hard.