@Vivace
It’ll be revealed that he was actually just an innocent genocidal monster but the real monster brainwashed him and was the spaceship the whole time! Oh wait, that’s Power Rangers SPD. Not looking forward to talking about that.
But seriously, Belos, the Palisman murdering creep getting redeemed I think would top Star VS for the biggest FU ending.
I’m guessing he gets an over the top death, like The Horned King from Black Cauldron.