The Flash Season 3: 10 Big Questions That Must Be Answered

10. How Much Will Flashpoint Change Things (And How Long Will It Last)?

In the comics, Flashpoint (which took place in 2011) was a major event that really shook up the DC universe. The root cause was the same as it is in the show, with Barry saving his mother, but the world was very different to what the show can feasibly accomplish: Thomas Wayne was Batman, Atlantis and Themyscira are at war, there's no Superman and so on.

Obviously the show won't be able to start throwing in a number of Justice League characters due to the upcoming movies, so we shouldn't expect any alt-takes on Batman or such like, so how else might things change.

We know from the Comic-Con trailer that Cisco will be a billionaire, and Barry didn't grow up with the Wests, but there should be a number of other surprises up the show's sleeve.