If you would like to follow developments, there are a few mailing lists for this:
This is where the core developments occur (both source code and content). Note that these lists can be a bit daunting and difficult to understand for non-developers, and it might be hard to see the long term strategy (like the parking positions which will take time - as in many, many months). But searching on the mailing list archives should allow you to understand what the plans are. It is also useful to be familiar with the
draft FlightGear policy document and roadmap (this is essential if you sign up for a mailing list), and to understand that core development is a very slow process.
Regards,
Edward