Update: We've gotten an official announcement from Blizzard saying that Veteran Edition is coming with patch 6.1 as a way for players who have ever had a subscription to log on, chat (with restrictions) and play (also with restrictions) even after their subscription has lapsed. This version of the game will have all of the restrictions the Starter Edition has, but let you check in with the game (and your friends) without paying for subscription time.
Original post: Since the patch 6.1 files well and thoroughly datamined, another rumor about free to play WoW has started making the rounds. Hidden in the patch data is a new account type called Veteran Edition which is set up to have similar restrictions to the Starter Edition, in which you can play for free up to level 20. However, just what those restrictions are aren't yet defined: all we know now is that there are new strings in the patch file that refer to a Veteran Edition.
Though there are plenty of military personal who play and love World of Warcraft, we really can't say what this Veteran Edition is -- but if it gave military or veterans a chance to revisit WoW that only seems like a good thing. However, it might yet turn out to be nothing at all... or just an idea that wound up in the patch files that may vanish by the next PTR release. Though Blizzard has expanded the game's microtransactions, sparking rumors that WoW itself would be going free to play, Blizzard has said before that there are no plans to make the game free to play. So even if we do get a Veteran Edition, it's probably not a segue towards a free to play game -- but we're definitely curious as to where this is headed.