^That would be cool if each of the "sages" had separate, interesting personalities. Maybe there would be no specific "leader", similar to the way the Kimono Girls thing worked, and they would all be focused on a single area? Wait, for that to work, there would have to be at least nine, one for each gym, and in this scenario I suppose the last one, the E4 one, would be a leader of some sort. Yeah, this would be interesting, but I think GF may have had enough of the "cult" thing with Galactic...but it would still be quite epic, especially if at least one or two of those "sages" were female.
Or, get this- the Interpol is the evil team! They've gone bad and stuff, except for a few of them who try to work with you to bring the agency down from the inside. Plus, this would give you the excuse to dress up in a cool costume like in HGSS with the Radio Tower. And also, we'd get to see Looker again. Wow, this is reminding me of the BW2 speculations when I saw some person speculating that Looker would form an ultimate evil team from the captured former executives of the teams he and the Interpol had brought down...it was by far both the weirdest and most epic idea ever. :P