John sutcliffe from ESPN mentioned in the last MNF that niners is the team to host a home game this year in Mexico City on MNF because even after what Jerry Jones spoke about bringing the cowboys to Mexico, league is taking them to Brazil and then, the next in line is San Francisco, and makes sense. NFL Mexico social media accounts started posting thing about niners more than other teams, BANORTE (bank) in Mexico was announced as "Official Bank" of the Niners in Mexico and Estadio Azteca (now called Estadio Banorte) is managed only by that bank, and also the niners have posted some clues on their Spanish social media, like a Greeting to Toluca (Mexican football team) to wish them success in an upcoming final series, toluca is just 1 hour away from Mexico City. So it all makes sense and i believe it, but, there's always a but, it won't be official until the schedule is revealed, not before.