Very cool. Cadwallon is one of the great underrated games released in the past couple of years.
I would imagine FFG will have the reprint of the base game out to coincide with the release of the expansion. For a while I feared that this game would suffer the same fate as "The Adventurers" in that the base game would remain OOP forever. When I read the press release for this expansion I was shocked that the game wasn't a stand alone expansion like the new Adventures game. All in all this is great news, and the expansion sounds like it's adding a ton of cool stuff.