mvsgas, I do apologize for the whole discussion. My limited knowledge on english language made me understand that fluttering was a variation of the X axis of the whole aircraft, and not just wing movement (flutter). I do apologise for that and the answer is no: the FBW do not prevent that, it affects the flight envelope, it indeed does not have anything to do with how the structure of the aircraft moves due to a multiple array of variables.
Cheers man!