KP would be savage in a negative role, for sure. !!
I can't really say that DT won't be able to pull it off. It could be because of her 'mataji waali image' that we have become accustomed to. Problem is she goes very dramatic when she gets angry, so it feels very staged. Also she looks kinda cute, and not threatening 😃 when she expresses hate and anger. But I am curious to know if ever she has to an out-and-out negative, how she would handle it.
There was this scene in the old YHM , 11 pm wala where she barges into Raman's office and they have an argument. And she says " Bepanah nafrat karti hoon" or something like that . That was the most savage that she had got on the show before they tamed her and transformed her into a SP bahu. But I really loved that scene!!
I wish they would both just start doing different roles once this show shuts down. They would both need very good directors though who can bring out the best in them.