I got super excited when I saw the thread title! Dang it!!!
Yes, EWR-DCA is back up a ton. It had to been down to one flight a day last year, two flights a day for most of this ear and now they are running 6+ flights a day. Nearly hourly is great.
IAD-LGA had been cut back to 2x CRJ200s. Looking at 11/1/21, LGA-IAD is now up to 10 flights a day, almost all on ERJ175 so at least they have first class.
-RM