DC TV Universe Crossover Moments We Want This Season

SUPERGIRL AND ARROW

From the very first moment fans started itching for a crossover between The Flash and Supergirl, I have thought that in some ways, the more interesting crossover would be Supergirl and Arrow.

Why? Well, mostly because, let's be honest, Arrow is so far from where Supergirl is tonally that it would be interesting to see whether the two could occupy the same space without it being incredibly jarring.

That just keeps on going. Last year, there was a sense that Arrow was going to be a little less dark and gloomy for a while, but then they doubled down on it, reinforcing Oliver Queen's place in the Flarrowverse as the sullen, angry guy played by an actor who refuses to sing.

DIGGLE AND EVERYBODY

There are few things more entertaining in any given crossover episode than John Diggle's reactions to what Barry Allen calls "the impossible."

We don't actually know just what role Diggle will play on Arrow this season, but it's a safe bet that by the end of the calendar year when these crossovers are happening, he won't be out on special ops for the military anymore, but rather a part of the Star City cast, if not Team Arrow proper.

So I think it's time to introduce him to the alien girl, the time-travelers, and the like. As audience members, we deserve it.

SUPERMAN AND THE ATOM

This one's a long, long, longshot. It seems really unlikely that Superman will even play a role in the crossover (so far he's only set to appear in the first two episodes of Supergirl, while the crossover will happen at midseason).

But c'mon, who doesn't want to see Brandon Routh's wide-eyed take on Ray Palmer stand face to face with Tyler Hoechlin's Superman, and see what kind of comment comes out of his mouth?!

Aside from the rather obvious fact that Brandon Routh was once Superman himself, there's just the fact taht somebody who's as positive as Ray would find a meeting with a Superman this late into his career, this established, and this inspirational to be a real kick.

HINTS AT A WIDER MULTIVERSE

I'm pushing my definition of a "moment" here, but there are certain beats you can hit that aren't actually storylines, but more just little glimpses into the world. Those moments -- and the subsequent speculation as to whether they're meant to mean something greater or just be there for fan service -- are often the best bits of these crossovers.

When Rip Hunter tells us that he's seen "Men of Steel die and Dark Knights fall," everyone knows what that means and what it means for the DC Universe, even if it's just a cool turn of phrase for the purposes of the show. Ditto when we see the Crisis on Infinite Earths name-dropped on The Flash.

We want some of THAT. Build the world without having to necessarily sidetrack the narrative to do it.

THE JUSTICE SOCIETY MEETS JAY GARRICK

Look, we've got Jay Garrick over on The Flash and we've got the Justice Society of America coming to DC's Legends of Tomorrow this year.

How can he not meet them?

In the comics, Jay is one of the members who has been in nearly ever iteration of the JSA, and his presence is a defining one for the team. Along with Green Lantern Alan Scott, Wildcat, and one or two others who are pretty consistently there, the Golden Age Flash is what people think of when they hear "Justice Society."

He will likely not be a member of the team when we first meet them at the start of Legends of Tomorrow. After all, he's not from the past, he's from a different Earth. But that doesn't mean we can't have him form a relationship with that team at some point...!

HONORABLE MENTION: A GREAT VILLAIN

All these little exchanges between characters, all these character beats and in-jokes and things that make you go "Squee!" are great. But one thing that a crossover of this magnitude needs is a truly impressive villain.

It's hard to even speculate about who it might be, although last year they did pretty well by aligning the CW's DC forces against Legends of Tomorrow villain Vandal Savage, setting the stage for his dominance on that show.

This year, the crew of The Waverider (along with the Justice Society of America) will face off against the Legion of Doom, a powerful, time-traveling group of villains including the Season One big bads from both The Flash and Arrow.

While it would be difficult to hand the Legion of Doom a decisive defeat halfway through the season, they -- or perhaps some allies of theirs -- may not be a bad starting point.

Or, heck! We have a multiverse, the Freedom Fighters, and the Justice Society of America. Why not fight Nazi supervillains from Earth-X?

The crossver between The Flash and Supergirl last year was all about the heroes, with a fairly underwhelming menace that only posed a threat because Supergirl was fighting without focus. A great villain (or team of villains) could really help things by allowing the heroes to be challenged without seeming incompetent.