I've never been to Detroit and surely it has a history of boom and bust but is it on the verge of a boom once again?
Within the last week or so I read an article (either the Wall Street Journal or the NY Times...can't remember which) about how Detroit has become a model for reinventing a city. The downtown is once again becoming vibrant, led by the owner of Rocket Mortgage, who invested money in an area that virtually everyone else had given up on. Detroit is one of the non-rural areas of the country where housing is still affordable so businesses are starting to locate there since they can hire workers less expensively than on the costs.
What I've read about Minneapolis, on the other hand, is much more bleak. With entire downtown office buildings abandoned and the feral element taking over the streets.