Yes, a Forgotten Land sequel

Why do I think this? Well in Fecto Elfilis's figurine description, it states the they're "planning their next invasion". Now, I know you might be thinking: "Didn't Kirby kill him?" HELLO! SOUL FORGO IS A THING! You might think he is also dead, but turns out, he teleported away when Morpho Knight was defeated. I found this out on the Kirby Wiki.

However, this is all speculation, but I do think the next game will be another 3D entry.