Indeed they are still selling tickets.
The main website, however, now goes to a listing for Wizard World New England Comic Con 2012, with an indeterminate date in October.
Wizard World has recently dropped the Central Canada Comic Con from their list without reason This is the second to go It used to be the case that[...]
central canada Archives
But there isn't an actual Wizard World to go to, and they've been taking down pages that are only available in the Google cache.
In November, Gareb Shamus announced he'd bought the Central Canada Comic Con, renaming it Wizard World Central Canada Comic Con, planned for the last long weekend in October in Winnipeg.
Manager of the[...]