I think that they should use the Black Lightning series to finally add the first live action portrayal of Static adding a character that has a very interesting story and fits in so well with their world. I mean especially with a mentor with almost the same kind of abilities, despite a few differences... it even opens up more possibilities for other heroes and villains to show up.
I also believe that with the Legends and their time-traveling gig... now this isnt a favorite idea of mine but I consider it a possibility, but maybe they can run into Booster Gold? And who knows, if they go down this route maybe they can also somehow introduce Ted Kord AKA Blue Beetle... I know that Kord Industries has been shown to exist in this universe and Ted Kord has been an ally and partner of Booster Gold in the comics... it even opens the future possibility to introduce his successor, Jaimie Reyes. Now Brandon Routh was originally going to portray Ted Kord as Blue Beetle but it was later changed to Ray Palmer due to copyright issues but who knows, maybe they can work it out somehow. Lol
I also would love to see Rex Mason AKA Metamorpho make his first live action appearance who is a known associate of Batman and the Outsiders so maybe they can introduce the character, preferably in Black Lightning, as the show is kinda forming it's own version of the Outsiders which Black Lightning was a member of in the comics... plus I just think that Metamorpho has a very interesting and complex story, feeling like a monster and needing to realize that he is not alone in the world and having that "he is only a monster if he chooses to be" dynamic... I just think it could really fit into Black Lightnings story elements with everything that has been going on. We even know that Simon Stagg and Stagg Industries exist in this universe and even tho Simon Stagg was killed, they might be able to find a work around that still plays out his origin story, allowing them to introduce the character... I dont know, I just think he is a character worth considering.
I have also considered Zatanna which is a cool character to add as she is a recurring associate/love interest to Batman and/or Constantine, maybe Legends can introduce her as Arrow did with Constantine, helping them out in an episode and eventually becoming a recurring guest.
Now another character is... Doctor Fate, now he is a very very very long stretch but we do know that he kind of exists as the helmet of Nabu was seen in the Constantine series... maybe someday they can work on that character appearing at least once or twice. I only mention him due to his connections with Constantine and the Helmet of Nabu cameo.
I do have another suggestion which again is a 50/50 in some minds but John Diggle is referenced to become a green lantern in the Elseworlds event as well as the finale of Arrow... we know that Ferris Air exists and a flight jacket was seen that belongs to a man named Jordan. So many easter eggs and references that says Oa and the Green Lantern Corps are out there but is it possible that in the future, there is a way for them to fight alongside our other heroes?!
I mean when Arrow first aired, we never thought that it would form a universe of characters and tv shows the way that it did... yeah maybe a few comic characters here and there but over the course of nearly a decade, they added many characters such as The Flash, Superman, Supergirl, Martian Manhunter, Batwoman, Black Lightning, John Constantine, and many many more... it started with just human criminals and then advanced to hi-tech criminals, ninjas, metahumans, cyborgs, mutants, ghosts, angels, demons, and my god even a unicorn and a fairy god mother?! 😂
The Arrowverse has much more to give so out of these possible characters and story arcs to be added... do u agree on any of them or see any of their potential? What other heroes do u think can be introduced and how do you think the Arrowverse can bring them into play?
This a serious discussion on how we think they can expand the universe even more so please tell me ur thoughts below.