Baltimore is moving forward with a Heritage Trail and it will be multi-themed (unlike Boston's). Fort McHenry, not included. See it here.
Civil War content is mixed in with War of 1812 stuff, which is all right - tourists need variety. And there is no hint (yet) of a single overarching theme, developed by public historians and then approved by politicians. The National Park Service having no presence in the city is another huge plus.
So far, so good.