"Legends of Tomorrow" has been renewed for a second season, and is currently in production. The recent move of "Supergirl" to CW has increased the shared superhero universe into four, including "Arrow" and "The Flash."
Fans can expect a lot of excitement from the crossover's between the shows. Even Caty Lotz, a.k.a White Canary, expressed her excitement during a recent interview with Comic Book Resource. She said she was looking forward to the crossovers as she always wanted to visit Earth 2 in "The Flash." She shared that the two villains she wanted to go head to head with was Black Siren, White Canary's sister played by Katie Cassidy, and Killer Frost, Caitlin Stone's evil alter-ego played by Danielle Panabaker.
The actress also teased her fans by revealing that Sara Lance will likely have a new love potential and it isn't Leonard Snart. She said that it is likely to be with another girl. Lotz also said that she was hoping for Katrina Law to make an appearance as her character in "Arrow," Nysaa al Ghul.
The series also introduces new characters such Albert Einstein. Spoilers reveal that the heroes will cross paths with Einstein as they travel to circa 1942. The team becomes disappointed when they discover that he is actually a snarky ladies' man. Eventually he proves to be helpful when the team saves his life.
There has also been speculations via Movie News Guide that Patrick Adams from "Suits" will join the show as Green Lantern and will reveal what Justice Society of America (JSA) is about. Brandon Routh, a.k.a Atom, reveals that an "Arrow-Legends" crossover will take place as the series will introduce more characters from the Arrow-verse.