•  With "Supergirl" joining The CW, crossovers and story arcs are only going to get bigger.

With "Supergirl" joining The CW, crossovers and story arcs are only going to get bigger. (Photo : YouTube/AMC Theatres)

Is Batman making a cameo appearance in "Supergirl" Season 2? Things have been pretty exciting for the show's second run so far. After transferring from CBS to The CW, the show is adding Superman to the mix as his cousin Kara fights crime in National City.

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The latest trailer for "Supergirl" Season 2 shows Tyler Hoechlin channeling his inner Clark Kent - bespectacled and crowned with the perfect hair. After hearing a distress call, he suits up as Superman and joins Supergirl as they prevent a spaceship from crashing into Earth. 

In another trailer, we see more of Clark and his interaction with Kara's world. Everyone appears to be hyped up about having Superman in their midst. The most interesting in these set of trailers so far is that it makes a reference to another popular neighborhood in DC Comics: "Gotham."

Although only briefly, hearing Gotham mentioned in a "Supergirl" Season 2 trailer raised speculations that Batman may make a stopover in National City. They already have Superman, so in case they have a party, they could have Batman over, right?

Not really, as it seems unlikely for the Dark Knight to appear in "Supergirl." Executive producer Ali Adler, however, told TVLine that they may adapt something from Batman's story in the DC Comics into "Supergirl."

"We have this beautiful history with DC, and I like that we get to borrow from this amazing, wonderful canon that we have," Adler said.

Adler added that for now, The CW is focusing on the massive four-way crossover involving "Supergirl," "Arrow," "The Flash" and "Legends of Tomorrow." "I think people will be satisfied with how much crossover they're getting this season," Adler teased. On the other hand, Batman's storyline is being adapted in the Fox series titled "Gotham."

Meanwhile, Hoechlin explained that his version of Superman will be different from that of Henry Cavil's in "Man of Steel."

"It's pure fun and it's Superman as I think he was intended to be, which is just an incredible symbol of hope to kids that they can do anything, and that they can be good people, and that good people can triumph over evil," Hoechlin told EW about his role.