The information in the AP article of Derrik J. Lang(see Amazing Race in the Media thread) has only a tiny bit that is new. However the juxtaposition of Kazahstan with Cambodia has caused me to take a fresh look at the question of the missing leg. It has to be either a second leg in Cambodia, which I have deemed less probable, or a second leg between Almaty and Moscow (most probably Astana Kazakhstan), which I have deemed as more probable. Given the statements of Bertram van Munster about the time spent in the Cambodian jungle and the information we already have on tasks done in the Siem Reap/Angkor Wat, the probability of the two-legs-in-Cambodia (if so then probably using a TBC in order to fit time-wise) scenario has increased.
Another speculation is based on van Munster's statement that much Kazakhstan footage was shot in "the capital of Kazakhstan." Many people do not know that the capital of Kazahstan was moved from Almaty to Astana 11 years ago. That might include Bertram, who is traditionally suspect on much geography information or might just be using an old atlas(that happens to me on occasion).