It’s that time of year again when geeks from all over the world gather in San Diego for Comic-Con, the world’s biggest pop culture convention. From July 17 to 21, more than 125,000 pop-culture devotees invaded the San Diego Convention Center — many in costumes dressed up as their favorite characters — and let their nerd flags fly for the hottest upcoming movies, TV shows and comic books. Here’s a roundup of what to expect in the foreseeable future.