I don't know, but I can't imagine Karasuma getting kicked out of the storyline for good just like that. Especially not in a manga like this, it's not the type that deletes characters. Can't tell how he's going to stay though.
Well, it's official.
Karasuma is a badass.
^yeah, and he's a better match with Harima than Hanai..
Thats only cuz he's fueled by LOVE!!! ¬_¬ (Hanai is just driven by hormones).
The author reallllly doesnt give Itoko enough (screen?) time. She's cool.