Who is Gerard?

And since Kishi seems to be fond of big plot twists, Tobi could be Rikudo who, instead of being the sage that brought peace to the world by sealing the 10 tails, was a bad guy using his powers for evil--only he was stopped and his powers were stripped from him by the combined powers of Naruto's and Sasuke's ancestors.

Pretty much Itachi in reverse or the plot of Final Fantasy Tactics. I mean, Rikudo just looks like a "bad guy," doesn't he?