How many entries do you think gen 10 will have? We know they are developing all games with room for DLC just in case so there are no problems like with The Hidden Treasure of Area Zero but that doesn't mean all games will actually have DLC. On the other hand Legends Z-A had DLC so the new Legends (Galar's) could have too, who knows. At the very least we can expect
>Wind
>Wave
>WW DLC part 1
>WW DLC part 2
>Legends
>Seed