I think that the 1 new map and the ghosts/other characters are more than enough for an update. Later when the other 2 or more maps can be added as like 0.1.1 etc
I agree other maps can be added later... If the ghosts are ready, 1 new map is ready and the assistant too should be more than enough.
Yes, but it will make some secrets obvious and I don't wanna spoil the fun of discovering a secret.