A little bit of tea that I just read if you can call it tea: apparently, the Division system is only for their Korean groups so this isn't gonna be the Chinese version of NiziU.
Divison 4 is also the division that is responsible for Day6 so MAYBE they'll have a band concept since this feels SUPER soon to be debuting a new girl group but I don't think JYP has any female trainees that are prepping to be in a band that we know of.
I wonder if they're not confident in Twice signing their renewal contracts and that's why their bringing out a new girl group so soon when they already have a new boy group coming at the end of the year...