In this recent tweet, we can see the first released image of a game-generated river! It's a safe bet at the moment that it will face similar height restrictions as default water generation, but that may change in time - after all, we already have legitimately generated waterfalls!
We will keep you posted as more information about rivers is released.
hopefully this update comes out before school starts :biggrin.gif: can't wait for it! ps these rivers look epic and hopefully in the future piranas and other creatures get added specifically for the rivers