After John Abraham, Hrithik Roshan and Aamir Khan, it seems that the 'Dhoom' franchise is all set to get bigger with its next installment. 

Though it was claimed that 'Dhoom 3' will be the last film of the series, there is serious buzz in the industry that Yash Raj Films is keen to continue with the brand and is planning to make it bigger for which they have apparently approached Salman Khan to play the antagonist. 

Given Salman's action image, the banner is seriously considering making 'Dhoom 4' with the star in a never-seen-before avatar. 

However, the leading lady of the film is not yet finalized. 

As none of the previous actresses have been repeated in any of the 'Dhoom' film, it is doubtful that Salman's ex-flame Katrina Kaif would be cast. 

If the rumors of the film turn out to be true, it remains to be seen who will bag the role of the leading lady. 

At the same time it will be interesting to see 'Dhoom' series protagonist Abhishek Bachchan's onscreen chemistry with his wife Aishwarya Rai Bachchan's former boyfriend Salman Khan.