The season 4 premiere of The Flash seemingly reveals two Arrow characters who survived the explosion on Lian Yu in the latter show’s season 5 finale.
So, those fans paying attention to Arrowverse news likely knew Felicity and Curtis survived Lian Yu, but for viewers who don’t follow the news as closely, The Flash premiere’s Arrow spoiler likely came as a surprise.
Still, fans will have to tune into the Arrow season 6 premiere to learn the fates of everyone on Lian Yu.
Surprisingly, The Flash season 4 premiere revealed at least two of the survivors of the explosion.