After the super debacle of the much hyped 'Kurbaan', sources reveal that the master movie maker Karan Johar has decided to accelerate the other project 'Dostana 2', the sequel of the film. It is said that Karan has suggested that director Tarun Mansukhani must wrap up the script work as soon as possible so that it can be taken to the floors. So far, only Abhishek Bachchan and John Abraham are the chosen ones for the cast.