@spotanjo3 Back in fall of 2019, a trademark for Kaze no Klonoa Encore was registered, and it was listed as Active about a year later. Seeing as Bandai Namco is participating in E3 this year, I wouldn't be surprised if it showed up there. The Encore name has been used for the Japanese releases of Mr. Driller Drill Land and Katamari Damacy Reroll carried this suffix, so I think it's safe to say that this'll be nothing more than a HD rerelease of the not-so great Wii remake of Door to Phantomile. If we're lucky, Klonoa 2 might be thrown in there as well.
If you really want to go the extra mile, you can fill out a Japanese customer form for one of the other Encore games. One of the final questions is something like "Are there any other Encore games you'd like to see?" There's a guide out there that I used, but even with it the thing took some time.