Hello there:
1. More 3somes may happen, some more ffm are in thoughts.
2. Won't happen, the only starmaker account is and will be Anna's
3. Something similar is in thoughts for the endings to be able to buy a new house and have 2 girls to join it. There won't be "huge harem"
4. There won't be sex change.
5. Pregnancy will be one of the focus of later update.
6. The cryptids are as they are presented.
7. This won't happen.
8. There will be at most 1 more character for these activities after a quest for the character.
9. Already happens, one more will join and is unlikely for more than that one to join.
10. Unlikely.
11. No school location will be added.
12. Will be better organized after full release.
13. More costumes will be added.
14. There won't be changes to befriending Adrian, and as stated before, no transformations of characters.