Twilight Sparkle is a unicorn in the preview. It looks like she did in fact lose her wings in the finale.
Then what's this shit? The first part of the sequence was from an old episode.
>It's a Pony Kind of Christmas
>In every color, shape
>All around the world of Equestria
>Christmas is here to stay
What do ponies have Christmas trees for if the central thing they put up is a flagpole?