I wouldn't count on it bein in a future set. Green Lantern wasn't neither was Bizarro, Black Spider-Man, or Shazam
True but I don't have $1,000 to send on lego figures so if he is only released as an SDCC Exclusive I will be out of luck.
BUT they had to make some new molds from him so I would think he has to be included in some set to make back what they spent on the molds.