Well, since at 20,237 feet (6,168 m), Denali is the highest peak in North America, it will probably never lose all of it's glacier ice. So I suspect hikermor III will probably still want an ice axe and crampons for his climb.

However even the big glaciers in the park are retreating and or thinning dramatically. For example, the NPS has a nice web display of photo pairs showing the changes over time. They also have a pdf about glacial monitoring that is quite interesting. As an archaeologist you might find this one interesting.

The lower elevation and tidewater glaciers are where the changes are most remarkable. In the recent movie "Chasing Ice", photographer James Balog placed automatic cameras at many glaciers worldwide to make time lapse movies of the changes. At Columbia Glacier in Prince William Sound, he had to move his camera several times during the course of the project because the glacier was retreating so fast it went out of view! (Chasing Ice is a great film, do see it if you can.)

To those of us who have lived in Alaska even a few years, the changes are obvious and impossible to ignore. For example, Exit Glacier near Seward is one of several Alaskan glaciers which are easily road accessable. I took a group of visitors there in 2007. Even though I go to Seward several times a year (boating, fishing, kayaking), I didn't have occaision to drive the 10 mile side road to Exit Glacier again until about 2011. The changes in the terminus of Exit Glaceir just about blew my socks off! Incredible that it shrunk so far in just four years.