bela has nothing to do with shivanya or shivangi...shivanya only had one daughter and she is shivangi...it can be bela being shivangi's daughter but its impossible becos shivangi was not pregnant when ritik-rocky killed her...so bela can't be shivangi-rocky's daughter
shivangi's story is incomplete but for that mouni-arjun-kv trio needs to comeback to solve the mystery
S3 is a whole new story...whole new presentation...i deeply feel bela is ruhi...vish is helping her...coming to falling in love with mahir...vikrant died...he can't comeback but life has to move on...or maybe this season it will focus on mahir-vish...who knows bela might not fall in love with mahir due to naagin eternal love for her naag...it can go any way...furthermore this season love story looks slightly different from last 2 seasons