A NEW EEVEELUTION. WHAT.
Had to insta-sketch it. And she looks awesome too. So much speculation going on!
Normal type? Surely not, you'd think a normal would look far more like Eevee itself. It certainly has the normal type feel.
Fighting type? Doesn't really seem to fit, though I'd love to see one.
Dragon type? Haha no. Though I get the whole -looks like Milotic and the Prism Scale- thing.
Light type? I feel like this type has come up like every gen since ruby and sapphire haha. Would be VERY surprised.
I'd say it'll be Flying, seems to be the most obvious choice. Those crazy ribbons man. And in it's battle picture it definitely looked to be doing a move involving feathers.
I'll assume it evolves by piffing an Eevee off a cliff. No one had the heart to do it till gen 6? Haha. I dunno, the way it evolves is another thing.
Let me know what you think! I like reading about people's theories and stuff haha, its english name will be interesting too.