I am thinking Rishab will ask Triveni to run away with him to marry her, if hes like Hiten, he might as last resort as he does not agree with Thoral. Blackmailing might come into this by Megha catching them & blackmailing SANRAJ they will reveal everything even the video of the rape to society and whatever more rubbish they make up, sign and get out of MMansion if you want to protect what's left to protect of Triveni?
I am also thinking Triveni's punishment to Vishal, she will say punishment is she will marry Vishal and make his life hell, reason I say this is because I too think she will be pregnant, its EK serial everything so far recently is the same. I dont think Rishab can be called the father of his cousin if Triveni is pregnant, already there has been complication with relations due to Khemi being married into the family, 1st with Hiten it did not happen, verdict went with society and then Khemi ran away married Arjan but was accepted as she was pregnant with his kid and because their marriage happened unknowingly that Arjan was DM's long lost son, this will be similar but everyone will know soon about whats happened between Vishal & Triveni, now relationships would be more complicated? If a baby would be involved, society will not allow a cousin to become its father? it does not sound right to me, nor have I heard of this happening? there will be a storm later in life between Trishab. They may bring in this twist again to complicate matters of who marries who & I don't think Triveni will marry Rishab but Vishal and thus becoming DIL of SANRAJ. I may be wrong but who knows.