Although some hope that the Concept CS will influence future 7s, the 2009 model will be more of an evolution, likely drawing cues from the redesigned 3-series. But the real changes are likely to come from underneath.
A longer wheelbase, partnered with a wider track, will be utilized to keep with BMW's handling ethos, while new engine choices, including a hybrid and twin-turbo V8 diesel will provide motivation. A new ZF eight-speed gearbox is almost certain, along with a revised iDrive system and several new safety features.
Look out for the refresh in 2009, with a full redesign sometime next decade.
[Source: Autogepot via Motor Authority]