Is Detroit the future of Manhattan?

This year our family trek took us through Chicago and Detroit.

Detroit was more interesting and attractive than we'd expected, but it's not hard to find collapsed houses. We didn't get to make the urban ruins tour, but we've seen the pictures. Detroit crashed hard. 

Chicago did quite a bit better. It was never a one business town.

Unlike, say Manhattan. These days it seems to be a finance and business town, just as Detroit was once a car town.

So what happens when Finance doesn't need humans any more? What happens when it's all software and AIs and rule based systems?

Will Manhattan 2050 look like Detroit?