Well - 38 home games (as opposed to an empty building) will be about $84k. Average of 7,000 fans per game is $532k. So, you are looking at $600k for the year, plus 100% of concessions. With a hockey crowd, I imagine concessions aren't bad.
Maybe the biggest thing for the WCD is the millions the Ads are giving towards renovations. In the end, even if the WCD breaks even, it is better to have the facility used than not.