Ex-Rare devs formed Playtonic and their first game was called average (except for the Switch port).
Actual Rare spends several years on a massive pirate adventure game, only for it to fail as well.
It's like old or new, Rare really is dead. -_-
However, there have been some recent hits that feel very much like games Rare did back then. Super Mario Odyssey feels very much like the new Banjo-Kazooie (lots of collectables, fun 3D platforming, crazy transformations), and Mario + Rabbids: Kingdom Battle feels like classic Rare in general (wacky characters, fourth-wall breaking gags, Grant Kirkhope doing the music).
What are some non-Rare games that you think feel the most like Rare games? :)