I don't think we will get AMA to be honest anytime soon, it would be probably good thing to do, but seems that team has chose to go completely different way on how they handle the community.
When was the last AMA? Is there any article with summary?
I don't see a reason not to have a new AMA now, so much time has passed since we really had a chance to properly hear from the team, a lot of people would appreciate it.