Jake Bunce is assisting us by recoding DP's fast importer for vB 3.8.2 with file system attachments.
Chris Deeming is helping to bring AVForums functionality to Xenforo. He'll be coding a bunch of addons which we need. I will be working with him to ensure we have the functionality we want, but also to make the addons generic so we can release them as resources.
I think this is a very strong team and I am optimistic that we can migrate AVForums while retaining the features our community has come to expect. The goal is to have a down time of only a couple of hours or so.
I'm very excited at the prospect of migrating to XF and being rid of vB.