I commented on this in the main 4/4 Feh Channel thread, but it's already getting buried in all the buzz about the summoning change and will probably go unnoticed.
At the end when Feh drifts off to sleep as per usual, she utters what sounds to me like "May 13th." It may have just been nothing but sleepy gibberish, but if she did in fact utter this date of May 13th, I have to wonder what this could mean. Could some FE-related event be occurring on that date? It's not the FE Expo, that's this month, right?