Details are starting to emerge about the next 3-series. The big news are some changes to the iDrive and the additional option of the 7-speed dual clutch currently found on the new M3.
Some enhancements for iDrive include the following: "Infotainment has been bolstered significantly by the ConnectedDrive fused iDrive and 80 gigabyte hard drive. ConnectedDrive features BMW Online which – surprise, surprise – enables you to access e-mail, news and stock market updates whilst driving; could be a bit disconcerting in the current economic environment though."
But to me the best option is the dual clutch. This is some very cool technology and out shifts a traditional manual. "The heart of the new BMW transmission is the double clutch system that acts to smooth out gearshifts to the point that they are often only discernible by watching the rise and fall of engine rpm on the... tachometer." more.