I'd love to hear from political geographers like Kenneth C. Martis at West Virginia or Jeffrey B. Lewis at UCLA regarding their work and any plans to update/more accesibly present it. I'm not sure the proper procedure for that, or if AskHistorians is even the venue.
Typically the Moderators handle AMA's from guests. Although sometimes Flairs also handle AMA guests.
I know we were taking suggestions, and I will pass these along. The big obstacle is the guests themselves, and their time schedules and willingness. We love to have these as part of the subreddit, and have had really successful ones in the past!
I'll reach out to them to see if they'd be interested. If anyone else browsing this question has a suggestion, send it my way.