My feeling is this. The UN is going to want to put a multicultural ruling party in there. The UN will leave the country to the Afgans, but maintain a military presence for probably a number of years.
But I doubt anyone is going to pay much attention to the want of the Northern Alliance. I think their uses are gonna be up when the Taliban are gone. And I think that is gonna cause some problems down the road.
If not I see the Northern Alliance causing issues down the road if they do get to gain power over Afganastan.
Its going to be interesting, because the UN and the United States are going to want to have a presence there well after this is all over.