The problem is that, while Solo could certainly achieve some degree of success even without a trailer, simply by being a Star Wars movie, the audience needs to see what this movie looks like more than any other in the franchise.
A trailer is needed if only to calm the fears of fans.
The fact that there were issues behind-the-scenes that required such a massive change means people are going to be gunshy about what’s coming.
While it’s understandable that the promotional plan for Solo: A Star Wars Story would be a bit behind, due to the extra long shooting schedule caused by the movie changing directors mid-stream, we sit here less than four months from the film’s release and all we have is a title and official logo.