Amitabh Bachchan is busy working on ‘Sarkar 3’, which is scheduled to release in April. He was to then begin work on another major film, ‘Thugs of Hindostan’. However, that film’s schedule has been apparently postponed to a later date. In the meantime, speculations are rife that Bachchan has finally given a nod to play an important part in Ayan Mukerji’s tentatively titled project ‘Dragon’. Bachchan will shoot for this superhero saga by mid of 2017. By that time, Ranbir Kapoor will have to shed his look of Dutt biopic and get into the garbs of a fire-emitting character.