Despite the fact the NHL has yet to officially announce the 2014 Winter Classic will again be rewarded to the Detroit Red Wings and the University of Michigan as a makeup gift for the lockout shortened 2012-13 season, the unused uniforms from the game may have already made their online debut.
SportsLogos.net, one of my favorite websites as a media savant, reported online auctioneer Ebay may have possibly erred (or not) in putting the suspected Winter Classic uniforms up for sale. 
It is interesting neither jersey appears to have a special event patch marking the game, but it seemed clear well before the date that the event wouldn't be taking place.
Both jerseys seem to encapsulate each teams' heritage without being gaudy like today's collegiate alternates.
It's hard to believe they would scrap this concept completely and begin again from scratch for next year's uniforms, but it is, after all, the NHL at work.