Dhoom 3 has received lots of pre-hype buzz from the time people heard names like Aamir Khan and Katrina Kaif being associated with the project.
We are quite aware of the consistent characters of the Dhoom sequels - Abhishek Bachchan as ACP Jai Dixit and Uday Chopra as Ali. Only the baddies are changed every time with John Abraham, Hrithik Roshan and now Aamir Khan to take charge of the darker roles.
However, Rimi Sen who played the role of Abhishek's wife (Sweety Dixit) in Dhoom and Dhoom 2 is absolutely out of the scene.
When she was contacted she candidly said that she had a substantial role in Dhoom but in Dhoom 2 it was merely a special appearance. She said she has not been contacted to play the role in Dhoom 3 as yet but if she will get the call, she doesn't want it to be some guest appearance. She wants a substantial role in the next venture.
Honestly, for me her role was always a very small insignificant role in the previous Dhoom ventures also. She was just showing skin in the first part if that is substantial enough for her and in the second part she was pregnant. Even if she will get a call this time, it is quite a big thing for an actress like her to be part of big projects such as Dhoom. I doubt there will be any SUBSTANTIAL role for her.