Ekta's article says that he will have extra marital affair and stuff, but he was pretty upset with his uncle for doing that...so how is Shiv going to do the same.
I have come to a conclusion though, I think he will be upset one night and Ipshagun will be there and a shoulder to lean on, so I think things will happen then. (typical Ekta serial) Ipshagun will fall in love with him and then they fight over him.
I really don't think Shiv will do it on purpose, it will just happen when he is drunk.
Just my prediction guys.