It looks like my scheduled Compass E175 flight for tomorrow morning has been downgraded to an E170. I had been upgraded at the window but now have been moved back to row 5 (though Delta.com still says "First (V)"). Also, the Delta.com seat map shows F as having one row (row 40?) with seats A and D - I am guessing that is a glitch, but of course it won't let me view the Coach seat map because it still thinks I am in F.
Oh well, I was stuck in row 20 on a CRJ9 on the same route last week so 5 on an E170 will be like heaven!