A new Kirby game may have been leaked. According to an Amazon listing, there is an untitled Kirby game releasing in 2019. The exact release date listed is December 31st, 2019, but that is just a usual Amazon placeholder date. The listing is for a digital code on Nintendo Switch.
Of course, this doesn't serve as confirmation of a new Kirby title. But, things like this are typically more accurate than a 4chan or Reddit rumor. It does seem like something Kirby-related is coming to Switch. With the listing appearing now, there's a chance we'll hear something about this in the near future, unless it's a mistake. The Game Awards 2018 is coming up, and that always has notable announcements. Maybe Kirby's next mainline game will be announced, or a smaller title, like an HD remake of the fan favorite Kirby Air Ride.
Kirby Star Allies will be receiving its latest DLC update soon, complete with new playable characters and a new mode. A 3DS port of Kirby's Epic Yarn was announced two months ago for release in 2019. With all that in mind, it would be a little surprising to hear the next mainline Kirby game being announced soon. It would be less surprising if Nintendo announced the next big Kirby title next year for release in 2020. It's unlikely that the next big Kirby game would release one year after Star Allies. So, there's a solid chance the Switch will be getting a spin-off title.
Sadly, a Kirby game has yet to achieve a 90 on Metacritic. Star Allies released this year to decent reception, but few outlets would call it an outstanding game. It is very good. but perhaps played it too safe, delivering a familiar adventure for those who have played previous Kirby games. There are a couple of things that can be done to revitalize the series. Increasing the difficulty level is one thing, though it's important to remember that Kirby has always been an easier Nintendo series, so bringing it to the difficulty of Zelda or Metroid isn't the answer. Rather, introducing new concepts and going bolder with the level design with help make the next game stand out. There's a reason why Kirby's Epic Yarn is still one of the highest-rated Kirby games on Metacritic: the game was easy, but a joy to play through.
Hopefully we'll soon learn more about this possible new Kirby game for Nintendo Switch.