It will end. Probably in another xpack, before they go free to play. Then everyone who always said "Oh I'd go back to WoW again if they made it free to play, since I wouldn't have to throw my 15 dollars at Blizzard and their empty promises" won't actually come back. Because Blizzard is too smart to give us anything on the Free to Play plan that we actually want.
The servers will be sad and eventually give up trying to load anything, until the Orcs check on them one day and there just isn't anything alive down there.
I expect there'll be actual tears shed somewhere.
Until then I'm enjoying my Troll Druid, because reasons.