User blog comment:ZSomji16/The Flash (Season 4), Arrow (Season 6), Legends (Season 3), and Supergirl (Season 3) Villains and Big bads/@comment-4952704-20170330051513

Arrow: As of the latest episode, KGBeast can carry his own season. I don't think it's very plausible that Anatoly will bulk up and put on a suit, but maybe he has an assassin that does the job for him? I don't mind that. If Deathstroke doesn't play a part in the current season, they should also build up to Deathstroke for the second half of the season. Maybe freed by Anatoly. Flash: They always try to outdo themselves, so maybe they should go smaller and more personal. Thinker and The Rogues should be the villains. No big plot to destroy the Multiverse, destroy the future/past or any of that.

Flash: Thinker and The Rogues. They should stop trying to outdo themselves with a villain who tries to destroy the future/past or the multiverse and go with a simple plot and good characters.

Legends of Tomorrow: A thing I notice with the show is that they try to be more experimental. To that extent, I say try some villains that are from different Earths. A thing they can end the season off with is merging the Supergirl universe to our current universe. I would try and save the Thanagarians for Season 4 and end the show there.