Going by all the spoiler pics...I have a feeling that G3 will ask Yash for one last promise...and that is ... to back away from all properties and wealth...indirectly giving way to aakash... If this happens...G3's death will be NOT be a sign of regret but her performance will live for ever.
OR
Another thought that came to my mind ...is she may have come to know the real culprit...G3 may ask Yash to fulfill her last wish...that is to take care of aakash and guide him to right path...if this happens...G3's death will be a sign of mixed feelings...wish that she lives to stay to see all positive changes in akash and her yash's fulfilling her promise...this wish...she will be remembered as a mother and a perfomer.