This post on The Car Connection blog says the unveiling of the LRX Concept will take place tomorrow for the 40th anniversary of the Range Rover:
The LRX was previously expected to make its public debut at the Paris Motor Show this fall, and that’s still a likely candidate for its first show-circuit appearance. The concept version of the LRX is powered by a 2.0-liter diesel engine capable of sucking 60 mpg out of biodiesel. The biodiesel element may not make it to production, but we’d expect to see a highly-efficient diesel engine in the car from the start–for Europe at least. In the U.S., a small turbocharged gas burner is more likely. Stop-start tech and lightweight materials are also expected to play a key role in fuel savings with the new compact Range Rover.
You can watch the official unveiling at this website.