I'm killing time while I wait for something specific to happen, so I figured I'd join you guys for a bit.
While I think this is a bit of cherry picking, I do agree with you to some extent:
- The Sonic the Hedgehog series made one mistake, and Sonic Team constantly dropped the ball when trying to rebrand so the series is desperately struggling to keep its image positive with self deprecation and memes. Sonic Mania may be bathing in nostalgia, but it was made with genuine love for the series, and I don't think it's a coincidence that it's the only game in the modern era of the series that's actually good.
- The Pokémon series has turned the assembly line up way too fast and nobody's really doing anything about, so now Game Freak is just vomiting games at us that lack soul and creativity beyond the designs of the creatures.
- The Super Mario series seems to be obsessed with its image to the point where only big budget 3D titles are the only thing that can have new ideas, or even just ideas that aren't from the New Super Mario Bros. series. In the case of Paper Mario, they're not really allowed to do anything interesting with the characters, or even really have a story...in a story driven game...which basically forces Intelligent Systems to take Illumination's approach of just stringing together fun moments. Combine this with the fact that they want so badly to make an adventure game similar to the likes of King's Quest and Tales of Monkey Island, but aren't brave enough to drop the RPG genre entirely because of the series's existing fans and your left with a series of games that are only good if you can ignore the RPG part of the RPG.
Beyond that, the Kirby series does seem to be getting a bit stale (though the devs do seem to be excited about the next title so we'll see how that goes), Animal Crossing never really figured out what it wanted to do with the villagers so now they're just kinda there, and the Yoshi series literally never did anything new with its sequels, but newer series are incredibly new and fresh (Splatoon, ARMS, Code Name S.T.E.A.M., Ring Fit Adventure, etc.) and even older series are still consistently injecting creativity into new titles like the Xenoblade Chronicles, The Legend of Zelda, and Donkey Kong series.
No there won't. The previous direct mini has made it pretty clear that they have basically nothing to show us. I'd be willing to bet that the most we'll see is a few smaller titles shadow dropped on Twitter.