A first look at Season 16 of the Real Housewives of Orange County shows a casting shake up in a big way.Heather Dubrow is back for more following her franchise exit in 2017, while newcomers include a bisexual housewife named NoellaBergener and a formerly sued cosmetic dermatologist named Jennifer Armstrong.The explosive nearly two minute trailer shows a whole lot of drama with Bravo bringing in fresh blood after the departures of Kelly Dodd, Braunwyn Windham-Burke and Elizabeth Vargas.