Same assumption on my end. Since they can get 170miles range in 30 minutes, and google only shows 2hrs 4mins from Newark to City Hall, I would think City Hall is possibly 2.5 hrs from arrival at Newark. Just enough time for me to shoot down from the Hartford area...which is totally nuts. But, this is historic! No promises here either!
Based on their last tweet of Somerset at 12:40am. IF Hagerstown..then arrive there about 2:30, then on to Newark, arrive 4:45-5:15. If straight to Newark from Somerset then arrive Newark at 4:15-4:30