Han Solo directors Phil Lord and Christopher Miller (who wrote The Flash’s original treatment before Grahame-Smith penned a screenplay which has since been rewritten multiple times) were even reconsidered to return to direct, but scheduling issues put the brakes on that idea. However, it’s hard to find fault with the three names listed above!
Zemeckis is a prolific director best known for the likes of Back to the Future and Forrest Gump, and while he’s busy with an untitled Steve Carell-led drama which shoots this fall, the studio is reportedly willing to wait for him (making a 2018 release quite unlikely).
Vaughn is no stranger to comic book properties after helming X-Men: First Class, Kingsman: The Secret Service, and upcoming sequel Kingsman: The Golden Circle. Neither is Raimi who directed all three Spider-Man movies back in the early-mid 2000s.
Who will land the job remains to be seen, but it’s hard to find fault with any one of these choices. They’d all bring something very exciting to The Flash, but the signs are all pointing to the movie now speeding into cinemas in 2019, so we’ve got a good while to wait!