The Movie opens in Japan next week, but they had a premiere screening during the week for the media, with guests on hand (director, producer, Japanese voice actors and the main girl on screen).
I thought it would actually increase piracy, as those people who were more likely to buy a physical copy (for them, or more importantly, their kids), would now go find a digital copy if they can't wait the extra two weeks, and prefer not to pay for that digital copy if they intend to get a physical copy. And then later maybe decide not to buy the physical copy now that they have a (free) digital copy.
The blu-ray version of the Bumblebee movie in America comes with a "motion comic" (and printed copy it seems), that is said to follow on from the Movie (since the next movie is likely to ignore its existence, it will probably be contradicted or reduced to partial canon in a few years time).
The story is called - Sector 7 Adventures : The Battle at Half Dome.
A three page preview can be seen here, with Bumblebee (in Camaro form) taking on Soundwave and three of his cassettes (two of which we've seen on screen... and the other has appeared in one of the early comics).