Arrow Season 4 Spoilers: Everything You Need To Know
7. Sara Lance Returns (Again)
Of course, Thea's isn't the only resurrection that's going to be of major importance this season, as Sara Lance will once again be coming back from the dead (again, although she was definitely deceased this time).
She is going to be one of the stars of Legends of Tomorrow, going by the new name White Canary, but before then she'll be brought back to life on Arrow, thanks once more to the magical waters of the Lazarus Pit.
That means that Malcolm Merlyn, responsible for her death, will also have some part to play in her coming back, while it may also involve introducing time-travel to Arrow, with the most likely scenario being Rip Hunter travelling in time to the night she was killed and 'stealing' her body, so that she could be successfully resurrected.