A LEGO set may have just revealed an important battle in Fantastic Beasts: The Crimes of Grindelwald, including how the Dark Wizard escapes MACUSA.
The carriage itself is being pulled by thestrals, and is clearly important – as it is the focus of a LEGO set that reveals how Grindelwald will escape!
The name of the set makes it clear that Grindelwald escapes from within the carriage, presumably when he is being transported by MACUSA.
The LEGO set was revealed by Nerdist, and includes a black carriage with removable roof and working doors, and a thestral with poseable wings.