It runs Saturday, May 2nd from 9am to 5pm at the Hamilton Convention Centre, free admission for kids with basic entry cost of $10 but I've read on their forum that they're working on some perks to offer a $15 VIP pass. 

The show began as the Joe Meet and has progressively been moving to larger venues, I think also the popularity growth may stem from the franchise getting the silver screen treatment this August.

I'm just a fan who really enjoyed last year's show, but more information on guests and features is available on their website:
http://www.canadianjoecon.com