Spoilers below for The Flash episodes up to and including the Season 3 finale.
Some pretty cool stuff happened on Season 3 of The Flash. Barry realized on multiple occasions that no time is a good time to go back and change the past, two new speedsters have joined Team Flash, the gang has fought a super intelligent gorilla army, and they've gotten to know crusty CSI Julian enough to make him a part of their secret crime-fighting league. And now that Savitar has been put to rest and the season is finished, it's time to start thinking about what might be in store for our favorite characters in Season 4.
Is The Flash Renewed For Season 4?
Well, there is good news for all you fans of The Flash, since The CW renewed the DC comics show for Season 4 back at the beginning of January. The news was especially good for everyone who follows the other DC shows on The CW, because the network also signed up for more Arrow, Supergirl and Legends of Tomorrow, meaning that the network's entire slate of DC-based series will be on the air for at least another season. Not to mention the newest entry, Black Lightning, which actually won't be part of the Arrow-verse when it premieres.
When Will The Flash Season 4 Premiere?
Since we're still deep into Season 3, it's way too early to know for sure when The Flash Season 4 will premiere, but we can, at least, narrow down the possibilities for the debut of the next season. In its three seasons so far, The Flash has always hit the airwaves within the first seven days of October, so it's a pretty good bet that Season 4 will follow that trend. Unless The CW decides to do something radically different with its schedule in the upcoming season, thanks to some unforeseen speedster messing around with the timeline.
What Is The Story Of The Flash Season 4?
Now that Season 3 has come to it explosive, city-demolishing end, it's still as hard to tell what Season 4 will be about as it was when Season 3 began. We can, of course, make some educated guesses until more concrete proof comes out once the scripts are written and the cast is set. A large part of Season 3 has been the fight to stop Savitar/Future Barry Remnant from killing Iris, along with his other various misdeeds, and that story seemed to be definitively concluded in "Finish Line" when the majority of Team Flash played a part in taking the big bad down, with Iris seemingly erasing his existence. The Flash tends to deal in big, season defining supervillains who are basically dealt with by the end of each villain's particular season, and we'll probably have a new Big Bad for most of Season 4.
In fact, a couple of months ago, showrunner Andrew Kreisberg confirmed that the next season of The Flash will feature a non-speedster supervillain, to which many a fan said "Hallelujah!" So, who might be the main bad guy when Season 4 comes around? Well, when the villain Abra Kadabra met Barry, he revealed that not only was he from the 64th century, but that one of Barry's greatest foes was going to end up being someone named Devoe. That's led many to believe that Season 4 will see lawyer-turned-supervillain Clifford Devoe show up as The Thinker, a baddie who's capable of figuring out every possible detail of a situation in order to stay several steps ahead of his rivals, and who also developed tech to use telekinesis and mind control.
It's bizarrely unclear how the finale's cliffhanger is helping to set up the story of Season 4, as well as how any new villains will enter the story. I mean, we don't even have a central hero anymore, since Barry sacrificed himself by jumping into the Speed Force in order to stop it from completely destroying Central City. (And HR is dead now.) There's no telling how Barry will ever get released from that speedster version of Hell, nor how he'll be able to move on from that devastating choice.
Now, let's take a look at what could happen to each of the main players on The Flash in Season 4.