If Imagine/BT have any brains, they will wrap up Bandini before and if RR leaves Bandini.....that being said, I don't think RR will ever quit Bandini, he is very loyal to BT and is the lead of the show and everyone is well aware that without RR Bandini won't survive, so I don't think he will do that to Bandini. Most likely he will divide his time between the two shows as he has done in the past and anyways with all the myriad characters introduced in Bandini, most likely he will have a lot less to do and we will see a lot less of DM since all these new people would have to be given screen space.