I'm amazed at the lack of information we're getting about the Mexico City show, or any show there.
You see, there's this festival called Hell & Heaven, and last year it was held early in May and exactly where the DT show is scheduled according to the website. Since the DT show is going to take place in the same spot and in roughly the same day (May the fourth be with you) than last year, it would seem safe to assume that the show will take place in this festival.
However, the festival has not confirmed anything about DT, or any band, in fact, it hasn't even released an official line-up or confirmed its own date, and it's already almost January. The official FB for the festival is fairly trolled in the comments by people that just want info about the bands, yet they're not saying absolutely anything, and in previous years we'd know something about the upcoming festival since at least November.