Technically, The Legend of Zelda series is already getting a new game (''Breath of the Wild 2'') and we just had Pokemon Sword and Shield. It's between Mario and Kirby but I think we're due for another Mario adventure game like Paper Mario Switch.
Maybe Kirby, but we could get a Zelda remake for the switch because we don't know how long it will take for Legend Of Zelda Breath of the wild 2 to come out.