1. BB is preparing Ashu to deal with his absence in future and making him realize the fact that Nidhi's family is his family now and he and Nidhi is united to take his legacy forward and as CB is his SIL from that angle too CB's family is his family. One generation leaves to give way to new generation. They will be there for him & Nidhi always.
2. A scene between BB & CB where BB asks CB to take his place in Ashu's life and to give support to him as father when needed .
3. A scene where BB tells Ashu to take care of his natin and never let tears to come to her eyes and tells Nidhi to care of his son and always be there for him as his emotional strength. Also shares some memories of Ashu & him and as well as Nandini & him.
If in future BB decides in favour of surgery----
then I want see before surgery BB to prepare Ashu for facing failure as we know success rate is only 5% in BB's case. But I feel he will never agree for Operation.