A lot depends on how it's managed going forward. Presumably there were good structural reasons for NYC to have become NYC, capital of the world, in the first place, be it institutional or geographical. Some of those reasons are impaired by the aftermath of pandemic, some are not. But clearly the short term is looking quite grim. Whether it go on for a couple of years or a couple of decades depends on how it's managed and how US interact with the world. Longer term, presumably those same advantages that created NYC in the first place will resurrect it, the same way they did after the 70's.