No, it will be about the mane 6! It Tara Strong said, that Twilight will not leave her freinds
http://www.equestriadaily.com/2013/01/super-secret-awesome-leak-morgan.html
Maybe he just gave it in pledge. He wanted it back after all
Yeah, I also think so. The jewels on her dress were all very small. And the red one wasthe prettiest^^