Hasbro will delay the release of the rest of its toys for G.I. Joe: Retaliation to early next year to tie into the revised release date for the movie (see "Universal Moves 'G.I. Joe: Retaliation' to March 2013"), the company announced late last week.  Some retailers have already put products from the first wave on sale; they were already being shipped when the move release date delay was announced.  But any products not already on sale will be returned (according to a report on Oh! Entertainment), and the remainder of the first wave and future waves will ship in 2013. 
This presents an interesting situation, with G.I. Joe collectors chasing the limited amounts of product that has already been released, with the knowledge that larger quantities will eventually be available early next year.  No elevated prices were noted on eBay as of Tuesday.