Arjun Kapoor to play Salman's brother in Barjatya's next?

Buzz is that the Ishaqzaade actor Arjun Kapoor might be playing Salman Khan's younger brother in Sooraj Barjatya's next film Bade Bhaiya. Additionally it is said that Salman's famous on-screen name Prem, could be retained within the film.