how about during the blast, the person who came out was Sadhna's look alike and died in Alekh's arms...that was shown in Mera Saaya also....nakli Sadhna dying in Sunil Dutt's arms...I predicted something similar in one of the posts..there was an old film called Mera Saaya on similar lines...So they might follow this storyline😛..but again if Sara is not willing to play a matured and older character then she might not return as Sadhna..she might either return as Sadhna's daughter Khushi or mayb some lookalike of Sadhna who will treat Alekh..🤔