As of now I'm not thinking about sairat because its long way to go and how they will bring it that's a big uphill task.
But seeing yesterday's and today's episode its sure shot that Vinnu isn't coming to Sai any time soon. As aaba said uss waqt ka intezar kar, that hinted a kind that Vinnu will be staying with Pakhi till he is able to make his own choices and decisions which he isn't right now.
In yesterday's episode when Sai was practicing to herself that how she will disclose Vinnu about truth the way she said ki Pakhi kept u in ur tummy for 9 months and raised u as well but I'm ur real mother bas, than I was like bloody hell no way Sai going to get her son, she is definitely going to have major heartbreak.
And even today Sai said that no one can stop me to bring Vinnu back, neither last time anyone could stop nor this time, but as we know last time also fate stopped her and Vinnu again end up with Pakhi.
Honestly writing is so messed up right now and don't understand how they will clear all this things.