A few tidbits and a poster for the 2018 Arrowverse Crossover event this December ... and that Legends of Tomorrow will do a crossover with ... themselves?! Why do I picture a sad, lonely child in their bedroom playing crossover with their imaginary friends while all the cool kids are outside doing a real crossover?
2018 Arrowverse Crossover Poster Reveals Elseworlds The Flash & Arrow
https://screenrant.com/2018-arrowverse-crossover-elseworlds-poster/