Fell will see canon. Specifically, she will see the end: the world destroyed by Usagi/the princess again... but Usagi bringing it back. It's the last part that's key; she'll realize every horrible thing she's done in the name of preventing things was needless.

This will be pretty earth-shaking for her. The issue I'm having is how exactly to work it into something easy for others to come into. I might have her actual post related to it be reacting to it as she tries to cope with the idea, rather than set at the scene. Because she hasn't had a good breakdown in awhile.