Interesting, looks like the team behind The Sims Medieval decided to spice up their logo for the game.  I wonder if they will do the same to the boxart as well.  Found this mixed in the downloads section from the official Sims Townhall site.

New Logo

http://farm2.static.flickr.com/1322/5112862516_0d92315678.jpg

Old Logo

http://farm2.static.flickr.com/1102/5112862564_765fe6a5e0.jpg