That’s great! I’m really glad you’re finding the rules useful - feedback is most welcome!
Most of the new additions will be to the introductory hexcrawl (detailed location description, and more detailed random tables). To the rules, I’ll be adding sections on “Different types of hexcrawls” and “Further Reading”.
I was hoping to have this done by the end of July, but I’ve been busy at work, so will probably have the final version out late Aug/early Sept.