Question: with only 11 legs being shown on the 35 timeline and us having no sighting of the potential leg 4 for 36, is it possible that with the addition of 13 teams they have decreased to 11 legs to have 0 NELs? If this is the case then there would be just 1 leg in Vietnam and the clues that they were seen given after was for a Travelocity App Product Placement to book their flights for the next leg (like how our sightings in Colombia in 32 we saw teams get the clue to do the Product Placement sequence and not because it was KOR).
There's definitely twelve legs. In Jaipur 1, 8 teams were sighted, only missing Greg & John (who we know made the final leg), Andrea & Malaina and Jocelyn & Victor. There were 10 stations sighted in Jaipur 1 for the Detour, so one of these teams was eliminated.
Andrea & Malaina checked in at the same time as Greg & John and then walked away from the mat together with Greg & John, suggesting neither team was eliminated (to say nothing of the social media spec). Jocelyn & Victor appeared to be celebrating as they ran to the mat and I have to assume a team cheering at the sight of Phil isn't getting eliminated. There's a small chance J/V were eliminated and just well-adjusted but I think the far easier explanation is they too were not eliminated here and there's an extra leg before India.
As far as whether Leg 4 in Vietnam or elsewhere, if they're going to a different country Phil still has to be able to get ahead of teams to film standups in this new country, film the leg (probably on 6/20) AND get ahead of the teams en route to India (also probably by leaving on 6/20 vs teams departing on 6/21). One consistent pattern this season is at least one calendar day separating legs in different countries, which would make the timing too narrow for a leg in another country.
