I think this is the right time for Dolly to re-enter BIdaai because if there is going to be something between Shlok and Dolly they can set out everything. And it will make more intersting because she doesn't like Sadhna and Ragini (sorry if i hurt you). Also, it seems like Dolly doesn't know about RaginiRanvir's Marrige - it's going to be really intresting....
If she enters Bidaai now or near future... it would make really intersting...
what do you think?