Photo: Casey Durkin/Bravo via Getty Images Hmmm … something is afoot, and we’re not talking about these custom Chuck 70s with Lala Kent’s face painted on them. Bravo revealed on November 26 that the upcoming 12th season of Vanderpump Rules will have an entirely new cast of characters, still culled from SUR’s and TomTom’s staff. Lisa Vanderpump, per the title of the show, will remain. We have no word yet on what the cast will look like otherwise. “I have such mixed feelings right now,” Lala