If they want domes, the options are going to be Milwaukee, Minnesota, Seattle, and Toronto for Sunday and Monday (from what I can tell). I'd probably rule Toronto out since international travel has become such an enormous hassle. Seattle would be the closest thing to a neutral site since Cubs fans can make the drive to Milwaukee and the Twin Cities from Chicago. However, I don't know how much both teams would want to travel all the way out to the West Coast to play these games. I would love for them to come to the metrodome.