The RGG announcement is at
http://www.riograndegames.com/news.html?id=14The part of interest is (bolded by me):
Other games on the horizon are Highland Clans (from Queen), three games from Hans im Glück (to be shown at Nürnberg), Priests of Ra (to be released at Essen, 2009), Dominion: Seaside (tentatively planned for Essen, 2009), The Heavens of Olympus, El Caballero (reprint), and a few more still too undecided to mention now.
Note that HiG has other games besides Carcassonne. Nürnberg is Nuremberg toy fair which will be held from 5th to 10th February 2009. Also do note that the plan to release these may not be a firm 100%.
Has anyone heard any announcements from HiG (in german or otherwise?)?