Applejack,
I know the CMC Crusaders disobey you by leaving the cabin, but, give them credit for helping Troubleshoes?
He did seem like a bad stallion, he just didn't understand what his talent was.
Sunset,
The journal you have in your locker, the one Celestial gave you, the one you used to send a message to Twilight, What will you do when it's filled up?
Of course, it'll show to everyone that you've changed. Like the Phoenix part of the song.
I know Princess Celestia will be happy to see you again.
If there's one thing I know, she believes in 2nd chances