At this point it would be the difference between a company worth trusting and just another Bethesda.Game devs can do roadmaps perfectly well within the company. It's part of game development to have a proper documentation and roadmap of what to do.
Going public and spouting empty promises again wont give the consumer anything we already don't know.
That they want to fix the game and bring to an acceptable level on consoles.
The risk of an AMA is that something is said that will not fully deliver and if that happens AGAIN it'll probs put CDPR to the boycot list at that point.
They should know perfectly well at this point what they need to do, let them do their thing and focus on development instead of putting someone on the stage to talk about things they ultimately know nothing about.