8) Captain Cold Returns
Wentworth Miller’s Captain Cold was shockingly killed off in the season finale of Legends of Tomorrow, and while it’s been confirmed that the actor won’t be aboard the Waverider in season two, he has signed a deal which will see him return in both this show and The Flash.
How that’s going to work is hard to say, and while time travel is certainly one possibility, it’s hard to escape the feeling that The CW has something a little more unique planned for the villain moving forward (an Earth-2 doppelganger seems like a strong possibility).
Regardless of how it happens though, it’s essential that we see Cold again, especially as there’s so much great dramatic potential in exploring how Heat Wave gets by without having his partner in crime and best friend by his side.