Very sorry for not posting, but super busy recently.
They recently both got neutered, (June 27), but have bounced back almost immediately. They haven't fully healed yet, but are back to running around the room for a little while a day. Since Cinnabun was a bit aggressive before, I had been keeping their play times separate, but their cages near each other. Yesterday I let them play together, and they did really well. (I'm still keeping a close eye on them, I don't want any bunny fights.