Any idea on how we can get a Q and A session with the dev that posts here about the NG+, like a live discussion not just a post and then abandonment?
Live discussions tend to get messy very quickly. In most cases it'll just be a million and one questions shot at rapid fire at the devs and they're going to struggle to filter out the nonsensical questions from the important ones, and even if they do their answers no matter what will enrage somebody. Communication via forums, like we have right now, is sufficient.
The responses from the devs are few and far between because quality is more important than quantity in this case, and they always have to be very careful about what they share to the community in an official capacity.