In fact, none of the recent marketing has mentioned the fact that the movie will be told in two parts.
However, one thing that has always been publicly spoken about is that the movie would be split into two parts.
Director Jon M. Chu and his team might not be hiding the fact that the movie is a musical, but after watching the recent trailer, I am afraid they’re hiding something else.
That doesn’t seem to be the case with the recent string of trailers for Wicked.