Yeah sad to see what he turned into, idk how they're gonna handle him in Season 5. I know he's said to be pure evil, but I still feel like he genuinely cared for Eleven before she sent him to the Upside Down. I mean im sure Vecna will die next season since its the final season, but perhaps as Vecna/One is dying he'll either realize how wrong he is, kinda like Darth Vader by the end of Return of the Jedi, except it wouldn't really be redemption since Vecna would already be dying. Either that or Vecna is so truly evil that he'll hate Eleven even more