Well after reading the article on the visit to banares and the shots that were shot there I was confused but then in my opinion banares would be more exciting as all the truth would be revealed I am sure that the OSO track (rather twist) wont take place because :
firstly sagar already knows vidya is innocent and she did it to save him, and thats the reason he goes to banares
secondly sindoora has sent the goons behind sagar to kill him but he survives or maybe he may fake his death and vidya supports him in this to bring out sindooras truth now he would believe vidya more than sindoora similar to OSO but not OSO completely
thirdly sagar and vidya do meet in banares and a major showdown happens where he would ask for forgiveness from vidya, and then we would have some good scenes something like hum apke dil mein rehte hain
now coming to harsh, we all know he loves vidya and can go to any extent to destroy her because she threw him out of the singh house so he would try to push her into prostitution some traces of laga chunari mein daag can be seen here i guess.
ultimately sagar would survive (since the article says vidya prays for him since he is unconcious) now this is where the whole twist is sagar would now be more strong and aware of what is actually happenning and what sindoora is doing and maybe till he regains conciousness we would have a leap of few years and the sets would change so will the story
does this mean instead of having a complete crap like OSO dhulaan would retain its charm and do something original again??? (some questions are better unanswered)š³