Frelorn posted last night:
All LOTRO websites and web services (lotro.com, the forums, Lorebook, and My.LOTRO) will be offline on Wednesday, September 8th from 6:00AM – 12:00PM Eastern for a major update. The game servers will remain available during the web downtime. Please note that following the update, players must log into the community sites with their Turbine Game accounts instead of their former community logins, but their community names (displayed to other members) will remain unchanged.
I love web site updates. I am very curious to see what this major update will bring!