I would genuinely love to see an anime based on Endeavor, specifically exploring his childhood especially after his dad died and seeing what happened to his mother since we know nothing about his mother. And I'd love to see what he does after Midoriya and all the kids have grown up. I'm curious about his mother since they say nothing about Enji's mother so maybe she died giving birth to him? So I'd definitely love to see about what happened to her.
Endeavor is my favourite pro hero. While I DO NOT AGREE with his past actions, I like his character growth after becoming the number one hero and tries to atone. He is well-written, and I love his redemption arc.