A big reason for the archiving of the 8th Edition board was that it had served it's purpose. At the time of it's creation, we were trying to contain all the wish listing being posted in the Elector's forum. With the 8th edition book out, there is no need for a full board just for that book. Most of the discussion should be within the elector board.
In addition, no posts had been made for 4 months with the exception of someone accidentally posting within the board about a current Empire topic! Any new discussion within the context of Empire in 8th edition should be taking place in the primary Empire discussion board, the Elector's forum.