Boeing is already here though.
Boeing has had a considerable presence at the Long Branch complex since about 2015. I was on the construction team (SLF telecom engineer, not employed by TBC). Yes there are some very cool secret squirrel parts of that facility used for demos and training but much of it is admin, sales, and support in addition to relationship building. It's not much of a stretch to relocate the HQ here. They'll be across the street from Amazon on one side and the Pentagon on the other. Not that this bodes well for Commercial Airplanes but it could be worse.