Swanithak
This was revealed during the search for a new groom for Jyoti - that Sudha & Uday were vacationing in the US. Last time they were seen was @ Sushma's godh bharai - since then, they've disappeared, and weren't even there for Sushma's wedding.
In reality, Sriti Jha is busy w/ Rakt sambandh, and Alok Narula w/ Raja ki ayegi Baraat, so neither of them has much time for Jyoti. I would like Sudha & Uday to be there for a final appearance @ Jyoti's wedding, before leaving, and letting it be known that they were leaving Udaipur, settling down elsewhere and starting their own family - maybe w/ MN&G, but w/o CM.
Jaf
It's unknown how much of the show is left - w/ Sudha gone, there may not be much. I guess if there is some, then a new banner could be done, w/ Kabir w/ Jyoti, dropping the Vashists (including Sudha), changing the Bhairavi actress and introducing Neelam w// Pankaj, as well as Roshni. I wonder whether there's any appetite for that, though.