Vimala Raman replaces Shreya in Hollywood?

After acting in almost all South Indian languages, it seems that actresses are immensely interested in trying their luck in Hollywood. Earlier it was reported that Shreya is doing a Hollywood film Now the latest buzz is that Vimala is signed for the English movie Dame 999 replacing Shreya.

She plays her native as an Indian girl who falls in love with an English man. Language is not a problem for her as she was brought up in Australia and the crew will also be mostly Indians, and that will make her even more comfortable. But that is not the question...why was Shreya dropped?