I had 2 bulkhead seats reserved for myself and my wife with the middle empty between us. plenty of seats available in E+ and E-.
Flight in 1 week and someone picked the middle seat. Now that's ok if E+ was full but.....
From EF the maps shows
9 Window seats (with middle empty) in E+ available.
5 Aisle seats (3 with middle empty) in E+ available.
3 emergency row seats (albeit one in the middle)
Wondering if it's a family and we might be asked to accommodate them ?
Are pax normally asked to change seats while checking in ? (First time flying UA on a long haul

)
Now, seats J,K and L in row 21 are available, should I grab'em or stick to our plan ? Wife prefers bulkhead and I just want an empty seat between us
PS. Pax in 20J and pax in 22C both have 2 seats next to them blocked