I see on a flight tomorrow that the main economy cabin is packed solid but there are a lot of comfort plus seats, most of them. I suspect that on this flight, maybe most people are booking basic economy or non-Comfort Plus economy so Delta is stuffing the people in the back to punish them instead of spreading them out.
Someday there might be movable seats so the leg room of basic economy is reduced?
Could this also be because those who booked Comfort Basic have not yet been assigned seats? I am really curious regarding how seat assignments and availability will be prioritized with all of the new fare structures. Will status upgrades from Main only be done after all of the Comfort Basic seats have been assigned? I believe this new fare structure will greatly reduce upgrade opportunities.