Jayson said that, and Adam Pawlus kind of seconded it in his QnA column this week, saying the figures were all open to order for all, which makes sense seeing as his workplace Entertainment Earth also sells them.
Mr. Pawlus also said there is already a Wave 2 that hasn't been officially revealed, and went on to say "it might be a while before Hasbro feels like actually playing up what could be a pretty interesting development," though it is not clear exactly what he is referring to at this time.
Either way, he concedes it is possible that WalMart might be the defacto exclusive retailer if Target passed up on ordering any, but time will tell on that. For the record, the new carded Marvel Epic line is at Target already, but not the carded Star Wars Epic line yet.