(Admin Edit, As of Sept 24 Calvert has not been returned to junior. See further posts below)
I don't know if there has been a press release yet, but I just checked to see how many points he got in tonights game vs. Boston, as I know he got a goal in the first... turns out they released him and sent him back to Brandon right after the game. Good to hear for our sakes, but at the same time I would not have been upset with him if he made the big show, he is a great player. Hopefully he is back for the home opener.
Here is the link that I saw he was released on http://www.tsn.ca/nhl/teams/players/bio/?id=6631