"I think it'll go in new directions," he told Hollywood Life of "RHOBH" sans-LVP. "She obviously has been such an integral part of the show since the beginning. There's no replacing her. But we have a team of all-stars on the show. I mean, if you look at that cast, it's like ... it's a powerhouse group. So I'm excited to see where it goes."
The host of "Watch What Happens Live" explained he doesn't suspect Lisa will "be back any time soon" but that the "door will be open" if she ever wants to return.
While Andy wanted the series OG to attend the currently airing Season 9 reunion to "state her point of view," he doesn't believe she was needed to keep things interesting.
"It actually was really dramatic, and we moved the needle," he teased of parts 2 and 3, which will air July 23 and 30, respectively. "Some surprising conflict and some surprising people coming together also."
"The Real Housewives of Beverly Hills" airs Tuesdays at 9 p.m. on Bravo.