Plan Z is only going to be needed if NCSoft rfuses to sell the game to another punlicher, rfuses to sell the game to the players, refuses to sell the IP to the players, or Paragon Studios reforms as a new studio and starts work on a new superhero MMO - all of those options are not only way more preferable than PLlan Z, they're also way more practical - if any of them happen, then Plan Z would be dropped at once.
Trying to make a player-made and run MMO would be a ginormous amount of work, and there's nothign worng with laying the groundwork for it just in case November 30ths turns out to be bad - the more we have in place by then, the more we can energize the CoH community and show them that it's not over, no matter what NCSfot might think.
There seems to be some tind of misunderstanding that there's a Plan Z vs CoH split - there isn't - everyone wants CoH to be saved, or for the devs to form a new studio and give us another superhero MMO - but as neither of those are guaranteed yet, some of us think it's also sensible to makes plans for another way to fill the CoH-shaped hole that we'd all be left with if the worst happens.