I haven't heard any confirmation, but that would make sense. When they discontinued the version of their carbon backplate that had a "built-in STA", they no longer offer a backplate that can be used with cam bands through the plate itself, so a Traveler/Adventurer style wing with cam band cutouts would be redundant in their product line.
edit - If you know thats what you really want, I might suggest calling around to some dealers and see if you can find something in stock. Might be able to find an in-stock kit with the carbon backplate and travel wing yet. Personally, I just travel with an aluminum plate and an STA and never wished otherwise, breaks down smaller with the STA removed than packing the plate and the wing threaded together with cam bands.