Originally Posted by
hhdl
I don't think new seat vs. Polaris seat has been disclosed by the OP.
To the OP, are there CEGJ seats on the seat map, or is every row ADHL? If there are CEGJ seats, you have the older, Polaris seats (probably more likely than the new seats to ORD), in which case even row A & L are recommended for solo travelers. If row 1 is ADHL, it's the new seat where row 1 and 10A/L have extra room (though note that selection of those extra room seats is limited to elites until 72 hours before departure).
OP mentioned route and it currently is new config.