I don't know who updates the THINFS Tour wikipedia page, but that guy knows something.
I checked it yesterday and the Chile show was already there, I was skeptical, but now I think the other dates are accurate as well.

September 10, 2017 Mexico City (This was added 18hrs ago to the Wiki page)
September 14, 2017 Santiago
September 16, 2017 Buenos Aires
September 19, 2017 Porto Alegre
September 22, 2017 Rio de Janeiro (Rock in Rio)
September 23, 2017 - São Paulo (São Paulo Trip festival)

https://en.m.wikipedia.org/wiki/This..._for_Sale_Tour