The Pokémon GO panel at the 2016 San Diego Comic-Con was moved into the larger Hall H as the popularity of the game created a lot of fans. Niantic CEO John Hanke was at the panel discussing the game with host Chris Hardwick. During the panel, the Team Leaders were revealed. Team Valor: Candela. Team Mystic: Blanche. Team Instinct: Spark. Many in attendance were disappointed though with the lack of new details or update news and that no special Legendary Pokémon was distributed at the event panel.
Sources:
https://twitter.com/PokemonGoApp/status/757328428169322496 and
http://www.wired.com/2016/07/pokemon-go-closes-out-comic-con/