RAMAN can ask pihu to stay with shagun may be for some day but I don't think he will agree for giving custody to shagun my belief on RKb but who m I to have such notions ,wen shagun is there to act a victim every one will dance on her tune as she is a brilliant actress and will convince everyone by her acting that she is the saint who descend from sky/heaven.
When Mani ,who was/is/will sketched as better man than RAMAN,can believe shagun then ye RKb ne kiya toh koi bad baat nahi hogi.
Shagun said once "ruhi & ISHITA tum dono milke v mujhe outsmart nahi kar paogi" so it's clear it shgaun vs ishru and RKb will play no role in it.or in worst case RKb opposite to ishru to make ISHRA fans life a living hell. đĄ