According to the Mayfair Games web site, there will be new Catan board games released in 2009.  First up will be Catan Portable Edition, designed to make it easy to store and travel with The Settlers of Catan.  A new Catan Geographies line will be released, starting off with Catan Geographies: Germany.  Catan Geographies: Germany is a game about trade, building, and settlement.  For more details, see the Mayfair Games site.