Yesterday in China, there was a presentation promoting the Transformers Movie, toys and licensed merchandise at an event called MCON Festival, and a 78 minute video can be seen here... but unless you can understand Mandarin/Cantonese, skip ahead to parts that are in English.

At about 10 minutes there is a feature on the IMAX filming of the fifth movie (in English) as well as a behind-the-scenes look at the filming... plus several minutes of film footage (and at the end of the video), that pretty much contains all of the footage so far seen in the dozens of trailers so far out there, plus some new scenes I haven't seen before.

At about 36 minutes they have a look at the origins of the Transformers Brand, featuring the Transformers toy that was designed first (the 1983 Diaclone toy that would become Sunstreaker), and gave birth to the concept of transforming robot toys disguised as Earth vehicles and objects. This section of the presentation then goes through key points of history in the Transformers Brand, and then a compilation of collectors showing off their treasured toys, and any children they share the love of their hobby with.

At the 63 minute point, we have Hasbro's John Warden (via video clip from America), showing off the new Movie Masterpiece toys - Optimus and Bumblebee. Some screenshots can be seen here.
At 66 minutes they show up a timeline of the Transformers universe (in English, but too small to read most of it), and a Brand timeline (from 1984 to 2019).