Yeah, I'd definitely like to see local avatars added to the WordPress core at some point. Honestly, it's always surprised me that they weren't a thing given that pretty much every other piece of software with an account system has them, and it's definitely something that's more feature material than plugin material.

Might also be worth making gravatars into a plugin instead, given how few people seem to actually make use of that feature in any real way.

So yeah, happy to see it might be included soon enough.