Its funny you say that Morgardee since the Walmart.ca website does show Storm Shadow and Techno Viper (Wave 3).
http://www.walmart.ca/en/ip/g-i-joe-...004%3AG.I.+JOE
I hope its a sign of things to come instead of false advertising. Most likely 30th anniversary may end with wave 1 but possibly wave 4 before the GI Joe Retaliation figures come out.
