There can be a middle ground for both the parties. Fans will be happy, so will be the creatives if they follow what I'd said earlier. Ishita should give another chance to love by marrying Mani. Ishita and Mani will have a happy ending and bid adieu from the show as there will be no story left for them. Raman's story will remain unfinished. Shagun or a new lady will make an entry who will love Raman unconditionally and will never leave him alone and help him come out of his self-recluse. Then together they will take the show forward. I think both the fans and the creatives will be very happy with these arrangements.
CVs can think about this option and fans & viewers should provide their feedback to them.