For my college placement I've actually been helping them plan this show
This show is more aimed towards the cruiser market but does have a few custom sport bikes show up. I know Suzuki of Newmarket will be there with bikes but I don't believe Harley will. I was told that the Harley dealers typically show up, but sell parts at the show not really bikes. Depending on what style of riding you're into you can probably find some gear, assuming you're a cruiser rider then you should be good. This year to save yourself parking fees you can actually ride your bike right into the hall, pay your admission and your bike is automatically entered into the Show and Shine. They are known more for a swap meet and custom bikes, so if you're looking for parts or accessories then it'd be a good thing to go to, and if you're into seeing all sorts of custom bikes.
Let me know if you have any other questions.