This is just typical ZUN-speak guys. Expect nothing that controversial let alone stuff that has been mentioned in this thread.
The most I can wager for Reisen is for her to renounce her Moon ties completely.
For something actually surprising regarding her would be if we found out her ears actually were fakes as has been rumored or joked about for years or that she isn't really a Moon rabbit. Remember the mistake in her LoLK demo profile where she was called Human? But again, no, I wouldn't expect ZUN to go even that far.