[UPDATE 11.14.10] – Today on his Twitter account, Goodsmile Company president Takanori Aki took a moment to write that their staff is very eager to produce an OVA sequel, however nothing has been confirmed at this moment.
Yesterday’s announcement at Anime Festival Asia (AFA X) was interpreted as an official announcement by several attendees and the Twitter community.
It still seems likely that B★RS2 will be produced. Maybe now may have not been the right time to reveal too much. We’ll keep you posted.