Regarding how Constantine will fit in on the show, it turns out he will be involved in a big question going into this season – just how will Sara Lance be resurrected? After all, Sara was killed at the start of Season 3, but we know she’ll be back as a part of the upcoming spinoff DC’s Legends of Tomorrow, with Caity Lotz returning as Sara and her new alter ego, White Canary. [more at source]