I was there this weekend, which was billed as a grand re-opening following the roof collapse and marking the opening of the museum's new restoration shop, with music and food and other entertainments as an attraction in addition to the collection. The rebuilt Mount Claire roundhouse itself looks wonderful, although four damaged locomotives and one passenger car are in a glassed-off area with signs indicating the anticipated cost of repairs for each -- no doubt an understandable attempt at fund-raising.
I hadn't been to the B&O Museum in about five years, and what was sadder to me than the aftermath of the roof collapse was the increasingly distressed condition of many of the locomotives that are stored outdoors. While some, like the Western Maryland F7, are in great shape, all too many (like all of the B&O steamers) show the effects of weather exposure in the form of faded paint and visible rust. I'm not an expert on locomotive preservation, but clearly the rusting is an issue that needs to be dealt with soon, and yet at this point the museum doesn't appear to have the money. Hopefully anyone else who's in the Baltimore area will have a chance to stop by and contribute at least your admission fee to help these guys get back on track.