I see that the World's Fair of Money will be in Chicago in 2019 (Rosemont Center in Rosemont, IL actually). This is the biggest show that the ANA holds annually, right? Or is it something else? This is the one that some of the Mints like that of Canada make the ANA privy mark coins for, right? https://www.money.org/worldsfairofmoney
This is one of the best shows in the country. There is much to see and some interesting exhibits and rare specimens. You will find pretty much anything you like. Rosemont convention center is in a decent location but parking is expensive and it is pretty much mafia run.
It is the larger of the two shows the ANA runs (but not the largest coins show, I think the January FUN show holds that distinction). I don't know if Canada is planning a privy marked coin for the occasion, but it wouldn't surprise me. Anything to separate collectors from their money. And they make so many "special" coins every year now, what's another one.