Quoted By:
>Game """"just ends""""
>Except the morning after the credits roll Arceus reminds you that the goal of this game is to catch all Pokemon
>Then you're immediately reminded by professor Laventon that you need to complete the Pokedex entries
>Then are immediately sent on the plate quest with Volo
>And DLC is already confirmed
You can easily get another 30-40 hours out of the game after beating Dialga and Palkia to get Volo beat and get Arceus. Even more if you want the pokedex finished for the shiny charm.
If you want to get really technical, you could also perfect the dex, or at least individual entries, it DOES have the tangible reward of increasing shiny chances a second time over for that specific pokemon. And it's as much content as breeding was in the old style, anyway.