I guess to put it simply, WTH was a very direct way of asking your customer base what the want to see. And then you want on and proved that it wasn’t just lip service by actually fixing their gripes. It was refreshing to see that from a project.
And I do agree with another commenter, in that I believe you should hold the WTH fore hacktoberfest. That gives people time to flesh out the votes before the developers get started on stuff. It might be worthwhile to have a system where people can reopen the forum topics during hacktoberfest to reopen the dialog with the devs.
Honestly, I can’t think of much to improve on the process. It was awesome. But you guys have made so many right decisions I would trust your judgement if you decided to hold both at the same time. Go with your gut.