In May 2005 NASA put out a solicitation for input from businesses for...

Pressure Space Suits To Protect Crews From Hostile Environments Throughout All Mission Phases To Support The Vision For Space Exploration (VSE)

http://www.fbodaily.com/archive/ 2005/05-May/25-May-2005/FBO-00814002.htm

People I talked to at NASA said they thought a single use suit won't work this time out.

But the files someone at NASA illicitly gave to Cowing talk only of Mark III suits on the Moon. Maybe there are other suits mentioned I just haven't read that part yet. To me it makes sense to have several suits because of the duration of the surface stays planned. This alone makes the mission different from Apollo. But you don't want to transport dust into the CEV wearing your surface suits. Besides the Moon Suits will need to be field repairable.