If the Wizard is someone from the present cast, than I really like your idea of it being Neal, @Josephine. It would definitely explain the disconnect some of us feel between Bae and Neal. I agree that Rumple is not the Wizard. Like Jo said, the Wizard is a con man. Rumple wasn’t a con man by any means when he was the Dark One and when he did get powers, he didn’t con – the made deals or threatened. But his deals were always pretty straightforward – “I’ll what you want but it’s gonna cost you.” And besides, I know Bobby can pull it off, but HOW many characters have they meshed into one person? Seriously, spread the wealth.
I’m thinking the Diana pic has to do with the Castle spoiler and then OUAT was tossed in as a redirect. It makes more sense for that show since the leads are engaged and their wedding planning is a part of the sub-storylines.