One thing I do wonder is if this is one of DHX’s bookends - the seems like the same panning shot layout (mind you, bar wings, crown and expression) from MMC the few moments before Twilight gets her wings.
O come on! Seriously, what is this spoiling? About the only thing here you could even possibly consider a spoiler is the fact that Twiley is now a princess, and that’s OLD news on the internet already. :)