The way I see it is that the "Classic crowd" says retail was dead when it went to the 5.6 million it had in WoD. So if Classic has less than that it is dead by their own definition, right? I believe classic servers will get about 500-800k users on the opening and probably drop to 100-200k after 6 months. If they do a patch cycle it will probably drop much faster than that at the start but will level out better in the end. Do I think it's dead? No. An MMO can survive with 100-200k users.