I've just run into this problem as well. Is there is a way to simply abandon the game? I can't play the single player 4-player Oceania anymore, because it simply sits there forever.
@sacrophyte Special events like that are not planned in the near future. But if you use a scroll to unlock an expansion the singleplayer mode will be unlocked, too. Using one scroll gives you access for 24 hours for that expansion.