Look very closely and you'll notice a more sloping roofline, combined with a more raked rear window. As of now, that's about all we can tell on the styling front, so we'll have to wait until the camouflage is peeled back to see the final shape. (Nice 8-bit, low-resolution cam, Land Rover.)
Rumors suggest that the next-gen Range Rover will wide on a modified version of the Jaguar XJ platform, enhanced – obviously – for off-road prowess. Land Rover is also looking to lighten things up a bit, and the new Range Rover will likely use more aluminum in the chassis and body than ever before.
Powertrain options will likely carry over with only minor upgrades, though two hybrid versions are rumored to be in the works, including a diesel hybrid. We'll know more when the Range Rover officially launches in late 2012 or early 2013.