John Wick: Chapter 4 director Chad Stahelski has confirmed that the ending we got is the one we're getting for now, and also why we heard about Chapter 5 at one point.
Chad Stahelksi Archives
For director Chad Stahelksi, the premise opens-up a ton of possibilities:
They've got a really good structure It's very tied to the film [in that] it's about the Continentals all over the world, how certain people come into that world, and what happens in relation to those people, which is cool I think the world is very[...]