It seems the race has completely dropped off the radar. I have a feeling it has probably gone to less known Asian places where the race would be less easily spotted. This rules out much of Malaysia, Thailand, Vietnam, South Korea, Australia, China, the Philippines and other places where the race is well known.
That leaves places such as Laos, Cambodia, Some of the smaller North east pacific Islands, Papua New Guinea, The lesser populated islands of Indonesia or even further east to places such as Bangladesh. The problem with this is to get to these places the racers would have to have indirect flights with stopovers and there doesn't seem to be any airport sightings.
Hopefully someone will catch a glimpse soon.