We are waiting for 'Bol Bachchan' to release. So till July end we will not finalise. After that we will take up a call on that," Rohit said. 'Chennai Express' is a romantic film with Shahrukh in the lead. Though the lead actress has not yet been finalised, rumours are rife that Deepika Padukone or Kareena Kapoor might be roped in for the film.u00a0