The Legends made of present day Los Angeles in the finale, and it’s likely they could use another great thinker who knows a thing or two about screwing up timelines to help fix things.
She also knows Mick, Jackson, and Professor Stein from The Flash, so it’s not as though it’s going to be difficult to learn names.
Caitlin Snow joining Legends Of Tomorrow would be an easy move, as well as a logical one, considering the similarly cold-minded Leonard Snart’s departure from the team.
It certainly sounds like an exciting prospect, right?