The roadmap I'm talking about would really be not a huge thing. And now that there are a few 100 people working in the company also not a real dent in any developement time.

We just need a rough overview of:

1. things that will be implemented in the furture (from obvious things like classes to maybe exciting new systems)
2. things that are currently in game but not in their intended version
3. things that are in game and in their intended version

The important things are 2. and 3.

It would make generating and evaluating feedback so much easier. Why would we waste time on stuff in category 2? Makes more sense to just wait until the intended version comes along. Then we can give feedback if a category 2 item becomes category 3.