The way I see it, if BT falls, then other continents should start having invasions just as BT had. And in-between invasions, everyone gets a chance to try to recolonize BT, like at startup, to establish a foothold to push back the evils and therefore prevent them from going back to the old continents.
This, IMO, would open for interesting gameplay and storylines.
I think this idea is really awesome, but I get the feeling a lot of people on the more established continents wouldn't like this all that much. They don't play on BT for a reason.
