So about all there is to cover are the new additions. What can I say about the Roman and Sci-Fi themes? I found these to be slightly lacking, consisting mostly of some new beds and other objects, a few skins, columns, and wallpapers, that can help give your house a different look. And while the quality is very high, as usually is the case for Maxis objects, they often fall back on that old technique of making slight color variations with the different wallpapers to increase the amount of "new" material available. These themes just aren't complete enough to completely makeover your Sims world -- Sci-Fi for example has some space-age looking chairs and beds, but your Sim Trekkers will still have to use 20th Century appliances for the most part.