We're still "up in the air" as to if Marvel is releasing an Avengers 4 trailer at some point this week, but it has now been CONFIRMED that a trailer for Spider-Man: Far From Home is coming out this weekend at Brazil's Comic-Con Experience!
According to confirmed sources, the first trailer for the Spider-Man sequel set in the MCU will arrive this Saturday and appear during Sony's panel at the event!
While the Avengers 4 trailer was rumored to release at some time during the week, it has now reportedly been pushed back because of the funeral being held for President George H.W. Bush.
This is just a fun fact, but Sony still owns the distribution rights for the Spider-Man franchise, even in the MCU, so they don't need to necessarily coordinate with Disney as to when other trailers release. It would be perfect timing to release a trailer as Spider-Man: Into the Spider-Verse comes out next week.
Take everything with a grain of salt though, because there have been WAY TOO MANY trailer rumors about Marvel properties this week!