Actually, I was thinking about that also. Even though the roles aren't as traditional as I orginally planned, for the most part the abilities pretty much are. Getting into the spirit of the Bond theme though, I just felt it better to change the roles to better fit the characters of these movies.
However, Mafia 19, the Wild West mafia was just traditional roles (aside from one that didn't come into play) and I did host that one. So, it is possible for me to do a straight-up mafia. I just need a theme I don't care to much about.