Next Track : Vengeful Malika will ruin the family.

If Sadhna wins, Vasu is revealed and they all are angry at Vasu. Sadhna, who is too nice, will forgive her, and the family will try to return to normalcy.
Meanwhile, Malika will discver that the man she falls in love, is the husband of her very own assistant, and that they are in love. Her bad nature will come forward front and center, and she will be the villain of the arc. She will try to destroy the family however she can, by sabotaging the project, and god knows what else

She already had strong buisness connections, and she also never goes down without a fight, so i can see her easily screwing them over, probably with the help of Choti Ma or Avni/Naveen.

Then, the family will be poor. How will Sadi save them again?

No, It's a "What if Scenario" thats just what i feel what will happen by all the clues we are getting about Malika.