What will happen if Manas returns?

Coolgal - nice poll....Only thing is it might be better as a discussion because, i feel, he would probably be capable of doing more than just 1 of the items listed...e.g. he would prob stop the sid/astha union, but he would prob also resume his friendship with simran....And he'd prob accept sia as his DIL also..

I agree with you! I am sure lot of interesting things would happen if Manas comes back...and I do hope he comes back..he would give this dragging serial the much needed lift 😛

He would resume friendship with Simran

If he were to come back Simran is and will always be his freind. Maybe this will cause Astha to realize maybe her "mama" is spending time with her friend rather than at home since Astha is making her life a living nightmare.

i think manas and urmila will reunite and will get married i hope so

Innocent indian is right.This point is more suitable to a discussion because more than one factor is very likely.
But an interesting poll all the same,coolgal.Of the options given I would go for

He would resume his friendship with Simran.

He will NEVER marry Urmilla.He is already married to Ria and was very much in love with her.This can only be a wishful thinking on the part of Urmilla sympathisers.

But I agree wholeheartedly that Manas's return will bring some much wanted excitement in the serial.I really miss Manas.He was my favourite.