I may eventually do the Blood Hunter, though it's far more complicated to get into HLC than most people may realize; it took months to get the Artificer working properly, and the Blood Hunter is even more different from standard 5e classes and their already-existing framework.
As for the Humblewood stuff, you might want to read [
this page. It outlines why we don't really touch most homebrew/3rd-party content, and why I at least don't have an appetite to program it.
That said, I'm happy to provide what I know to anyone who wants to try and program that stuff themselves!