Northern Light
Superstar
Alas Fallsview opened in 2004, 19 years ago, not 10.
That date notwithstanding; I actually think there may be some merit to the idea, in part.
Casinos are known for being relatively windowless; for buildings that are literally cavernous (going down into the ground), a casino on the lower levels might make some sense; If that allowed demolition of the blight that is Fallsview, which would in turn allow for re-extension of the rail a bit further to the east, and a new train station.
I certainly wouldn't want to see that use for both of them; nor would I want to see the grandest (presumably at or above grade levels) be relegated to private/customer only use............
Still....