There are now two distinct product families: the Discovery line, and the Range Rover line. The new crossover-like Discovery will take the place of the LR4, a more traditional SUV. The seven-passenger Discovery joins the five-passenger Discovery Sport on an aluminum architecture, allowing for a significant weight savings. On the other side is the Range Rover line, more luxurious and stylish, consisting of the Evoque, Sport, and the full-size Range Rover in standard and long-wheelbase flavors.
We don't have much info beyond what we can infer from the Discovery Sport, which is powered by a 2.0-liter, turbocharged inline-four. The larger Discover could be offered with that engine, as 240 hp is probably sufficient to move a vehicle that size around, but the supercharged 3.0-liter V6 and turbodiesel TDV6 are stronger contenders to move the as-of-yet unspecified additional mass.
While it'll assuredly be heavier than the Discovery Sport, the Discovery looks a lot like its smaller sibling. It seems that Land Rover gave the front a nip and tuck that didn't make it to the Sport for the 2017 model year. It's a cleaner interpretation of the same theme.
All should be revealed in Paris. Until then, take note that the 2017 Discovery will go on sale in mid-2017.