TheMisterManGuy on 15 January 2019
I don't we're getting an Odyssey 2. I do however, think we'll get a 3D World Spiritual Successor soon. Despite Odyssey's success, there's still a market for more linear, arcade style Mario Platforming IMO, so long as it's not sterile and unambitious like 3D World was. A new 3D Zelda on the BotW engine is certainly a possibility as well. Super Mario Party I think will adopt a 2 year development cycle as opposed to being an annual franchise. This give more time to allow for more polish, and NDCube can fill the gap with content updates a year after the previous game to hold players over until the the next entry. Given that Nintendo wants the Switch to run for at least 10 years, there's plenty of time for sequels and new games of all kinds.
