I went and read IF spoiler.
You are right. It doesn't say anything about memory loss.
But if that's the case, then Sai won't come back to CN even if she is pregnant. Today V crossed all limits and if she has Vinu and Saavi both, Sai would not wish to subject them both to CN nonsense knowing P is back.
Whatever maybe her love for V, it was not enough today. Sai rightly preferred her child over her husband.
The other option being and I am predicting again...
IF spoiler says Sai survives but doesn't mention Vinu.
Assuming he too is safe but V has managed to get hold of him, going by an ITV trope again, Sai might reach CN on her funeral. See Vinu in P's arms (a coincidence if P is genuinely repenting)... Will hear some nasty comments and go back leaving Vinu.
She might be heartbroken but won't come back to V.
And worst case scenario is if Vinu does not survive then Sai won't come back either in guilt.
I hope UM is back for a longer time since Sai has been called anaath and UM is the only remaining family of hers.
If Sai doesn't suffer memory loss and tells UM of all that has happened, I doubt UM would let her go.
Since the makers are big fans of P, they can show her proper redemption by making her reunite SaiRat like in KD.
Ideally Vinu should stay with Sai... If they are changing stuff, let it be that promo was a dream. Vinu is either with Sai or not alive.
Or that he is neither with Sai nor V and with P in some other place.
But Vinu in CN with P as his Maa and V as his father is everything against Sai stood for!!! Can't see her lose even in her absence.
The IF spoiler said Chavans grieving for Sai right
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