Hmm I'm not sure if Rachel has done the mind in another body time travel thing recently. That could be interesting.
I'm not yet sure if the "purple" and "blue" are the same project. The host asked Steve to use a single word to hint at upcoming stuff and he said he has a couple of mutant-related things coming up. It seemed like the two colors are for separate projects but anything is possible.
I hope so too and if not, at least we know she's part of a large story spanning half a year. That's dope.