Not seeing this in the New England region (yet).
Everyone on
this FAA domestic notice is showing that notice on their NOTAMs.
Many of them in the New England region are also showing this
ZBW NOTAM.
I did a quick NOTAM search for a dozen or so of those and none were showing any eclipse-related closures.
Given that the New England area is apparently going to have the best weather along the route it would not be surprising if some of the longer runways like KBML start to get busy with private jets tomorrow and Monday morning. They better get in early because people are predicting massive traffic jams.
I'm flying the helicopter with some friends up to their camp near the Canadian boarder. We'll have no problems with traffic jams or closed airports