Trisha turns 'Vadina' to Mahesh Babu?

A heroine's screen life is pretty short when compared to a hero and hence we have seen various actresses playing elder sister and mother roles to the heroes with whom they sang songs at their prime. Although the short life span of a heroine is still the same, this generation actresses are firmly denying to do roles which show them elder to the heroes whom the romanced with.
If the buzz is to be believed, actress Trisha is going to follow the seniors by playing a role elder to Mahesh Babu in one of his upcoming films. Mahesh and Venkatesh are playing brothers in the movie Seetamma Vakitlo Sirimalle Chettu and the buzz says that Samantha and Trisha will play their heroines respectively.
Venkatesh is playing the elder brother role to Mahesh in SVSC, which means Trisha would be Mahesh's sister in law (vadina) if she accepts this offer. Trisha played Mahesh's heroine in the films Athadu and Sainikudu and probably one of the few heroines who looked perfect match to the Prince. Can she turn vadina to Parthu Bava is a question that can be answered by one and only Trisha.