So hey, I posted this over on Resetera and I figured you guys would be interested. It's about that datamined Joker file from the other day.
"The other possibility, which I find far more interesting, is that we're looking at two different files here that people are interpreting as one. This garbage data just grabs stuff from everything around it after all, so we have no reason to believe these are all related to Joker. After all, there's two filetype extensions in that string, which generally doesn't happen for just one file. If we look at it that way...
Jack6_C06_v01_070925.mb is already one completed filename as is, and .mb is a model file. This would be the model file for Joker's seventh costume, which is still in development considering the v01.
Jane1_pony_hairSystemShape2.mchp, when looked at separately, is a hair-related file for a character with the codename "Jane". This character potentially has a ponytail or similar hairstyle, and this file is a global animation for all of her different costumes considering the lack of a "c0_" within it.
Considering the way in which this information was obtained and the fact that there's two different file extensions in the same string, I think it's actually much more likely that Jane is another DLC character codename entirely. It's only being associated with Joker because this garbage data put it next to a Joker file. I think people should instead be looking at this as a separate file altogether and trying to figure out who "Jane" is independently of Joker."