I know after the success of the Slash, a lot of the R/C world seems to have put their eggs in the Traxxas basket for reinvigorating on-road with a spec class...but I don't think this is gonna do it. Rally racing is not heads-up racing, so...kinda doesn't lend itself to our purposes. Rally fans probably also don't want to race on a traditional on-road, high traction surface. It's also a mini, which I think limits its appeal to those who'd be interested in racing R/C cars.
The second I saw the Slash, I said "This is going to be huge." Seeing this product didn't excite me at all and I don't expect to see long, flowing multi-surface tracks springing up to support rally cross. It'll find the same kind of niche audience as the new HPI Mini-Trophy, I expect.