There is a 30 second Racers Revealed promo on YouTube. In second 12 of the visual display of who applied for ARA3, there is a couple that has to be Kynt & Vyxsin. I don't think they were doing it to promote ARA3. They want an Amazing Race victory!
However, they forgot who owns a significant piece of Amazing Race Asia besides Michael McKay. It's our old friend Bertram van Munster, who would not be likely to allow any prior contestants from the U.S. to screw up any ARA. I know that the standards for who is a Thai and who is a Canadian are pretty lax for amazing Race Asia, but trying to pass off known Americans as Asians is a bit tougher(even for the Chos).