For those wondering, pages for Shadow Panther and Waspinator are visible on Amazon.ca now. Neither one appears available yet, but I think you can get SP with the wishlist method. Since the pre-order button is visible when I go to my wishlist.
Waspinator:
https://www.amazon.ca/dp/B08P3TT5FB
Shadow Panther:
https://www.amazon.ca/dp/B08P3RSQ5S