My personal wishlist?

1) Improve the wines. A lot of supermarket stuff being served. Would prefer something a little bit better when sitting up front.

2) Get better eye-shades. I usually bring my own, but the ones they offer are kind of pathetic.

3) Some form of pre-flight dining for late departures. In-lounge would be good, but I would be just as happy with some sort of voucher program at the restaurants in the airports - dinner at One Flew South or Sora would probably beat what one would get on the plane or in the lounge.

4) Barring pre-flight dining, something a bit better than the cold plate offerings for the expedited meal.

5) A food spread with sandwiches, wraps, etc available in the galley.

6) A to-go or expedited breakfast option. I try to sleep until the last minute, so usually miss breakfast.

Some of the other stuff mentioned would be nice, but not super high on my list. Dedicated and improved lounges would be nice, but I doubt they are coming back, since they ditched them once already. Limo service is relatively unimportant to me. And I've never really figured out what to do with the concierge on CO, and suspect that I wouldn't get any use out of a DL concierge, either. I refuse to allow myself to hope for expedited luggage delivery, lest I just be disappointed.