Personally, for some games, I think we'll start seeing some sequels to them around next year.
Mario Odyssey 2 -- This is the one of the two games that I'm going to list that I am 100% sure that we will see. Similar to Mario Galaxy, I feel that there is so much you can do with Odyssey that it warrants a sequel, not to mention there is probably a lot of money to be made for relatively low costs as I'm sure they would just use the same engine, but some new assets as well. I think we will see a Mario Odyssey 2 in 2020.
Splatoon 3 -- The other game that I'm 100% sure we'll be seeing shortly. Splatoon has ballooned into such a massive success, especially in Japan that I think a third game in the franchise i guaranteed. I think a trailer for it will be shown off at E3 2019 and I think it'll have a spring 2020 release.
Super Mario Party 2 -- This was a surprisingly fun game, and I hope that we get another one. Nintendo cranked out four Mario Parties on the Gamecube, and with how well this one is selling, I think we could potentially see another one, definitely in 2020, or maybe even this year.
Breath of the Wild 2 -- This is the only one I'm not sure we will be getting a sequel to. There is precedent for it, as shown by Ocarina of Time and Majora's Mask, not to mention, as I stated with Mario Odyssey, this would be relatively easy game to make as there is already an engine for it. If we do see this game, I say it comes in 2021.
What do you think? When do you think we'll be seeing sequels to our favorite Switch games? Also if there are any other 1st party games made for the Switch that you think will get a sequel that I missed, post them.