Mahesh Babu is presently working on SSMB28 which is being directed by ace filmmaker Trivikram. This film is likely to release this August.
Going by the statement from the makers, SSMB28 is yet to hit the important phase of music sittings. Just the rough version of the first song has been done till now and that too is in early production.
So, it should be quite a while before the audio album is locked. Thaman and Trivikram appear to be working at a leisurely pace as the unit is currently filming an action sequence and there’s no immediate rush for the audio album to be completed.