The Flash Season 2: 11 Big Questions We're Asking After 'Trajectory'
9. Will We Actually Go To Opal City?
With Jesse going off to make her own way in the world, as boards a bus headed for Opal City. This isn't the first time we've had a reference to the location in this universe, as it was mentioned on Arrow that Jake Simmons, aka Deathbolt, was incarcerated at the Opal City Police Department.
In the comics, Opal City is the home to the superheroes Starman and the Elongated Man, and the latter has already been referenced on the show as one of the people killed by the particle accelerator explosion.
Will we actually get to see the city and, maybe, meet a couple of these heroes? It still seems like a bit of a long-shot, but it'd be a fun way of building this world even more, and bringing in comic book characters and locales isn't something the series has shied away from so far.