YES. Karin content <3
Honestly, out of all the prospective contents in Ch4, I am most interested in her future direction even moreso than Yumi's, even if the latter has now officially joined RAS. How the hell will Selly restore normalcy between Sensei and her after everything that has transpired? There are two Karin generic events in Ch4 that are still not used; if they remain unchanged, that means in the near future she'd be willing to spent time with Sensei, subtly persuading him into returning to teaching
while wearing her swimsuit. In the near future, karinbetter will become true, but how could that be possibly done?
It's not like Sensei can just confess that "hey my inner voice that almost raped you is now gone; let's hangout again" and expect Karin to go "okie". On the other hand, Kirin now knows a little more about Sensei after his accidental open up and has come to terms with her own genuine care for Karin (she might attribute this to Sensei in front of her sister), but I am doubtful that any of these would even be remotely enough to convince Karin. What is it going to be? How would Karin return to the affection arena without involving some convenient supernatural course corrections?