For me, Azusa's story is over. Now, I think it will focus on the MC after the traumatic events, possibly a evil MC? We know he'll encounter that Gal. The only thing we know for sure is that NTRman is cooking something for us.
From what I understand, the spring episode will focus on this Gal, and there are many other characters to further develop the story, like Saeko, even that teacher at school.
Azusa already had an episode entirely dedicated to her, if she ever appears, I believe it will be very brief