I wanted to report back in case anyone is interested. The main security line was stretching back past the check-in counters when I arrived at about 8:55pm. The first/business line was empty. Sadly I was in coach on this trip.
But regardless, it moved quite fast. It took me about 20-25 minutes to get through the line and past security. It probably would've been about 5 minutes longer if I went all the way to the back of the line rather than cutting the line when my co-worker, who was already in line, spotted me.
But holy cow what a disaster terminal E is past security!!!! It was an absolute zoo. Overcrowded, airline announcements going on over one another. Wow. it was mad crazy.