They want to go back to campus as I understand it. No one is happy with the Metrodome but I've always felt that if you ripped off the roof and put grass into it, it would make a fine outdoor football stadium. Put in the corporate stuff the team says it needs and save $400 million.
And as a baseball stadium the Metrodome is a long-standing joke.
My father always points out that the Vikings went to four Super Bowls when they played outside and none since they moved inside.