As a follow up, since this thread has been revised, we ended up ordering a 2014 28dsbh on April 11 and the camper arrived at the dealer's lot on May 29. We ordered it with the 15k AC and the Glacier Package. When we picked up the unit, we did not have the "Glacier Package" sticker that we saw on the '13 models. I was a little concerned, and I asked for the build sheet that listed the options installed. It was listed. We do have a "Climate Shield" sticker on the trailer, and until now, I did not realize that was what the extra insulation package was named on other Jayco models. Thank you for that information, as the dealer did not mention anything about the "Climate Shield" being the same as, or the newly named, Glacier Package. We chose this for the heat, not for the cold.
P.S. We camped during the hottest week of our summer with temps. everyday in the 92-95* range, with excessive humidity, in full sun, with no shade until 5:30-6:00, and had no problems keeping the interior cold during the middle of the day.