stay with cube seems the most likely. theres no reason to go to yg, hybe is a mess, and tbl is weak sauce, look at meovv
they could disband, thereby all members can continue as solo artists or entertainers. shuhua goes to taiwan, yuqi and minnie semi remain in korea and travel to their home countries, miyeon becomes an actress and soyeon continues producing for others
split up ala kepler, where a few members leave. soyeon leaving is the same as disbandment. either yuqi or minnie are most likely to leave
or they could star their own company, which might not be worth it. if they start a label under cube that's the same as staying with cube