Game of Thrones cartoon is in development
 

https://variety.com/2021/tv/news/gam...ax-1234894042/

Early development. It's not clear if it's a spin-off to the live-action show or a new unrelated adaptation of the books. If it's the latter, I'm gonna guess it's like Fullmetal Alchemist: Brotherhood or (maybe a better reference for this forum) the 4Kids TMNT, in that it's made because the previous attempt at a TV adaptation totally went off the rails.

Kinda sucks that this is a bit of a nothing story, even the paragraph above is just speculation on my part. Here, have South Park's parody version of the GoT theme song, it's as close to an animated SoI&F project there is before this show is released.

Can they show nudity/sex in a cartoon?

Depends on the target audience. Onyx Equinox was released last year on Crunchyroll and that has quite a few shots of tits, vag and wiener. So there's nothing to prevent that as long as it's on streaming, which this will be, HBO Max to be precise.

I doubt this show is going to be "GoT for kids" because... I just think the boat has sailed on that. But then again, even if that turns out to be the case, HBO Max seems to have a looser standard for what's OK for kids. Infinity Train season 3 is still clearly meant for kids and yet it has this scene, Major Spoilers Ahead: