I agree that to know some roadmap would help A LOT.
Larian has internal roadmaps for development, however from a player PoV, Early Access is and always will be only Act 1. A road map for a typical early access game where the full game is released incrementally, a road map makes sense for a release schedule and general idea of where things are going. However, a road map for BG3 would look something like...
But as far as feedback on forums go, doesn't really make much difference for what kind of feedback or mannerisms we hold here, does it?
Lol!
As there are no "in stone" road maps I am aware of it suggests the schedule/process is somewhat fluid which makes me quietly optimistic. Trial and error is better than a tick sheet to do list imo. Still I would prefer a bit of player feedback from Larian instead of dead silence until they drop something.
I get the feeling the EA testbed is something in the background at the studio rather than something they are actively developing. As such I think when the game drops for reals we may be surprised....Or maybe that is the eternal optimist speaking again.