There is the whole Babli track and Bhalla family fiasco to be dealt with. Shagun's track is one I am not interested in at all. But there is that. I feel they have at least 50 episodes or 2 month worth of story to be told yet. Depending on how they handle it.
I may perhaps be in the minority here, but once they wrap up these up and give us a little more extra, I honestly have no qualms in having the show end. In fact, I feel it should end. I would prefer to have it end on a good note and remember it fondly for its beauty rather then to have it draged on and the characters butchered. Eventually people will detach anyway when it goes downhill.
Anyway, these were my two cents.