Maybe but Homelander (Antony Starr) is so delightfully psychopathic that the show would lose one very important cornerstore on which it was built, i don't believe any show has the balls to kill off its main villain without having a damn good follow up or a plan. Neuman is ok but so far not on the same level as Homelander.
Yeah, Antony Starr really did swoop in and made the Homelander character really his (like with Ledger's Joker or Brolin's Thanos).
Everybody likes a terrifying funny guy.