The Roadmap board is a public read-only board where interested parties can inform themselves on what is going on in NWN:EE land, development wise.
The Input board is something I and other developers can fill with data based on what the community are saying. Then you (each of you!) can vote on that data to prioritise it. Developers will pick features from that and move it to the Roadmap board to indicate "this is great, let's do it"
If you're interested in helping to make NWN:EE better, go vote in the Input board, and share the feedback on the main forum.
Now the Roadmap board provides all the Live Stream links. We have also added the patch archive list and put a card with the NWN:EE release notes there.
The full list of changes between Neverwinter Nights 1.69 and Neverwinter Nights: Enhanced Edition is here.