i'm waiting for this rig too. obviously all we can do is guess, but that is part of the game.
i look at it this way. a rtr honcho runs about $300. thats chassis, transmission, axles, wheels, body, electronics, etc. if this is a rtr kit i don't think there is much more they could add to it and keep it at $350 (assuming that will be the actual cost) since you still get a chassis, transmission, axles, body, electronics. what can you get for an additional $50? brushless? 2-speed transmission? this is assuming their costs to produce the chassis, transmission, axles, body, etc are comparable to the honcho for a production line product. i don't think you'll get both. if the $350 is for a kit that might be a different story.