I flew out on Sunday. I was on the 3pm AA flight to DFW. No big difference than any of the last 50+ weeks I've flown, except that my bag got a second xray visit. Yes, I did have to remove my shoes, but, since my shoes have steel shanks in them, I do that every week, anyways.
No secondary screening, at all. Plus, since you're flying midweek, I'd say that you should stay with a normal arrival time. If you preprint your boarding pass, 1 hour should be enough.