After delivering a Diwali bonanza with Krrish 3, the mighty father-son duo of Hrithik and Rakesh Roshan are looking to collaborate once again soon. While speculations are rife that, Krrish 4 would be their next project, those in the know claim that the Roshans are working towards another ambitious project other than the franchise of Krrish. Sources claim that the film in question is in its scripting stages and both father and son have been deliberating on it over the phone while Hrithik was in Abu Dhabi shooting for Bang Bang. The Roshans are expected to make an announcement soon to the effect. Says a source close to Hrithik, "While Krrish 4 is being planned on an unprecedented scale, Rakesh Roshan is also secretly planning another film with Hrithik. Since they already have an idea in place, the story is being fleshed out further by Rakesh." The source further adds, "It's going to feature Hrithik in a completely different avatar." Well, we are surely waiting for that one.