The CW's big Crisis on Infinite Earths crossover has shaken up the Arrowverse multiverse. Given that the original 1980s comic book event for which the crossover was named was intended to do the same thing, this isn't a huge surprise. However, with the final part having aired last night, Arrowverse fans now have a brand new set of worlds to get to grips with. These encompass most of the currently running DC shows, with several of them being shown in a quick sequence towards the end of the final episode.