To me, this farewell video was more about ending the weekly churn than anything else. He probably sees the millions of subscribers and figures that people hit that button to get more of exactly what he was producing, and when it would release. The non-commital tone here also suggests that he has no idea how/what is going to change, and that he's taking a indeterminately long break to avoid burnout.

In retrospect, his channel has been astonishingly high quality considering the rate of production he's had. And that's with all these side-projects and local/international travel on top of it all.

Scaling back to less frequent releases may well improve his already impressive content style. I'm excited to see what he does next.