[SPOILERS for those not caught up on The Flash ahead.]
Season 2 of The Flash has explored the concept of multiple worlds, showing both the similarities and differences between the inhabitants of Earth-1 and Earth-2. This has led to a lot of speculation about the identity of Zoom, the evil counterpart of The Flash, since he could be a tainted version of an established character.
One rumor that's been making the rounds is that Zoom could be Barry Allen himself, or at least an evil and corrupted Earth-2 version of him. Grant Gustin, who plays Allen on the series, recently weighed in on the rumor and teased what's next for Team Flash.
Unable to specifically reveal the secret identity of Zoom, Gustin did admit that he was a fan of that idea early on in the development of the current season:
"I don’t think it’s going to be Evil Barry. But I was pitching that idea really early on, like, 'How fun would that be, it’d be so cool!' I just selfishly wanted to play the villain."
He also admitted that he actually didn't know Zoom's identity until recently.
"I hadn’t asked. I asked way more questions last year. Jesse [L. Martin] likes to know as little as possible and I’m kind of taking that route this yea, so I’m surprised when I see the scripts and surprised when I do it. I hadn’t asked who Zoom was."
He knows now, though... producer Greg Berlanti contacted him to discuss the season and filled him in on where the rest of the story was going. This discussion included the twists and turns that would lead to Zoom's identity being revealed and what caused him to become Zoom as we know him. Gustin teased:
"So I do know now. Obviously, I’m not going to tell you! There are so many twists and turns involved with it and so many characters’ arcs that are connected to it. I said it about Thawne last year. Even if you think you know, there’s going to be."
With the main cast going to Earth-2 in the second half of the season, it's likely that the secret won't be kept for too much longer. It will be interesting to see how Team Flash perceives the other reality, especially given how their contact thus far might shape their perceptions. Of course, if the show delivers on the twists and turns that Gustin promised then it should be a pretty entertaining ride regardless.
Of course, if it's too big of a twist then some fans might not like it. Those who were heavily invested in other theories (such as "Evil Barry") might feel that their preferred theory would have been a better twist than what the show went with, or that Zoom's identity was chosen more for its potential as a Shyamalan-like twist than for a solid story reason. Hopefully, though, the reveal will both add drama to the season and satisfy fans even if they would have preferred a different secret identity for the villain.
The Flash airs Tuesdays @8pm on The CW. Arrow airs Wednesdays @8pm on The CW. DC’s Legends of Tomorrow premieres on The CW on Thursday, January 21, 2016.