Taken from Tim Roberts' corner at Revo-World.com:
''Trust me, this is a great truck. We have lots of seasoned RC veterans working here and they all praise the truck as possibly the most fun RC they've ever run.
The price will be less than $400, but we don't know exact pricing yet. It's a great price for the RTR buyers. 2.4G radio, brushless, good battery, etc included. Sorry to those out there waiting for a roller version- it won't happen. It's just not part of the Traxxas business model (excluding the Revo PE).
Expect them in stores early December.
There will not be any sort of conversion from the 2WD Slash to the 4WD. It just isn't possible. There are select parts that are interchangable, but it really is a new vehicle.
The battery used in the videos is the included battery. Expect 35mph out of the box speeds and 10-12 min run times on a track.''