The Illinois Gaming Board, still needs to provide the necessary approvals for this to happen.
According to the release, 'the book is designed to ensure no fan misses out on the action as it would be equipped with state-of-the-art viewing and sports wagering technology, as well as a full-service team ready to deliver a personalized customer experience.'
It would seem the Hawks fans would be able to bet against the Hawks, and recoup the cost of the already very low ticket price. The organization is always giving back to its fans! :)