I mean, the crux of the story has been explained. Anymore track would not bring back the lost charm.
The story writers have already finished telling the main story whatever they have set out to say. Any unwanted additions to it dilutes the beauty in the story that we remembered.
So I am saying, it is good that they are ending it when it is still beautiful and alive.
It also keeps Avinash and Rubina value as prime actors instead of saying actors of a dead show.
It gives them opportunity to explore other avenues such as Movies and Other Serials. The cast members have to move on.
Having said that, I would definitely want a proper ending instead of making kichdi of all the useless track that remained in Creatives head.
So friends, don't worry. We will definitely see them in new Avatars. So let it go for the better future of actors and other crew members.
I am Ok with ending CB with right note.