The doujin group that produces amateur erotic Sex Friend cosplay films has already gone ahead of the official production companies as usual and produced a Bocchi film from the Bocchi the Rock anime:
Just like in the anime, the girl chosen to play Bocchi in this amateur film also appears to have a good amount of breasts:
Below you see a very short video that they published, right in the new year where Bocchi is seen in “action” right when Japan was celebrating the new year:
https://twitter.com/sexfri_end/status/1609204781611982854