I had made my little draft ideas on a separate thread if they ever decided to do such a thing. But since they aren’t (and seemed to stopped doing secondary costumes for the 4* heroes too all of a sudden, I doubt we’ll get anything. Might even stop doing Costume Quest entirely in response since the new costumes, to me, seem to make getting any of them harder somehow.
That and the costumes would probably be “copy-paste” skills, adjusted stats, and artwork could vary between “not bad at all” to “when will we have a sudden rework, like with Hawkmoon?” territory.