in tommorow's epi neena tells her friends that she will break her contract and will have a child with kanav becasue that makes her husband happy. her friend says i hope you won't loose your husban and his love when you have the child. neena gets worried and her friend gives her a bottle of pills and says that these will help you to avoid having a child. neena takes the pills and hide it behind her sari. kanav's step mom sees this and smiles.
i think now neena will some how try to proove that she's sick and unable to have a child or she will fake her pregnancy. so since kanav is despert to have a child he will have an affair with kinjal just to have a child and eventually fall in love with her. Or kanav will ask kinjal to be the surget mother to their child.(like soni said earlier in her post, the chori chori chupke chupke way)
neena is slowly turning negative now. she will hate her saas, refuse to have a child with kanav which will open up the way to kanav and kinjal. this track is kind of similer to mamta.