The benefit you have, and I hope you stick to it, is theres no multiple paragraphs explaining the show before getting to the information that well, theres no idea when the next season is.
One suggestion, if there isn't a known set date (Example The Mandolorian, https://next-season-of.com/the-mandalorian/) don't show 'December 2021'. Also with that page, the top says 2022, but the next season shows 2021.
Quick edit: I wish you the best in the SEO game. You're going up against a lot of outlets with a lot of money thrown at ranking at the top. I'll be rooting for you, anything to chip away at the spam pages that are nothing but 'what we know...'