Sims 3 Nieuws spotted a preview about World Adventures posted over at Power Unlimited.  Below; a short translated paragraph:

You still need your Sim to the bathroom and send to sleep, but otherwise the gameplay is quite different from the Sims 3… which is for the best! Although you can not stay forever at the destination, you’ll still want to spend time in China, France and Egypt. This add-on is both refreshing and addictive and it makes good use of the new features. The Sims fans will go traveling and collecting.

review here (translated to English)