After announcing the license in April, Aniplex of America today reveled some of their plans for Bakemonogatari during their panel at Fanime Con. The series will be released this fall as a Blu Ray-only box set. Further, the series will not be dubbed, suggesting that their expectations for the show are somewhat tempered.
The discs will be produced in America, and will not be direct imports, as some of their past releases have been.
Aniplex is all over the map when it comes to pricing, but the best guess for this set would be in the $150 range.