I think TWiR can certainly belong in Rust: News along with any other relevant potentially recurring content (I'm thinking rustfmt, useful pkg update(s), news articles etc perhaps).
I've noticed its kinda challenging finding communities for folks and it's also kinda hard to make an actual announcement of sorts. I do, however, try to "pin" posts which I believe to be particularly important for the members to know. Honestly though, I too am figuring this out along with y'all :)