Yeah that's the bad part about getting first pick. It's probably better to get a late pick in this.
And yeah, Part 2 will just be for anyone who's not in Part 1.
But if we do get 8 more for part 2 then I might combine them afterwards into a 16-person competition rather than 8 each. Hopefully no one gets the exact same 2 houseguests or else combining them won't be possible.