Right now the frame of mind Arjun is in dont think he will be thinking of Shefali a lot, my feeling is that he will not marry Shefali and will be missing Bhoomi a lot, so that may get Shefali frustrated, cause they are showing a lot of scenes with Shefali feeling jealous, even Arjun mentioning Bhoomi they show Shefali jealous.
I still feel that they should have united A and B, and then Shefali in her frustration and jealousy could have killed Bhoomi or whatever to get rid of her. Aik khalish see rah gaye A aur B ko saath dekney ki.
Where following Ekta footsteps in using leap and plastic surgery, i guess the directors / producers / writers had no choice cause Neha wanted to opt out.
I guess they did not want to show the new girl with Arjun straight away till we the viewers accept her as Bhoomi, so my feeling is that slowly slowly they will come together.
Now with the change of face, i hope they show Bhoomi more in control and strong, not weak and just crying.
I wish all the best to Neha, and we will all miss her here.