So they could call the first evictee to the DR, evict them from there, Davina does the interview then goes back in wearing the same costume as the evictee so the other HM's don't know what's happening.
Then she could announce the second person to leave from inside the house, after revealing herself to the remaining HM's, and take them out with her?
Won't that mean we don't actually get to see her in the house much though? I'm a tad confused tbh