The Force Awakens is officially coming to Comic-Con. I can't imagine them releasing another trailer publicly next month, so soon after the last, but who knows? They'll no-doubt have new footage for attendees, it's just a matter of whether or not that footage will also be for public consumption or not...
http://www.slashfilm.com/star-wars-comic-con/
http://www.slashfilm.com/star-wars-comic-con/