From what I've read the money isn't there right now for the addition without hockey, so trying to fit hockey into the plan doesn't seem logical. The Urban Plains facility could bid for the hockey tournament and probably will at some point.
Your argument about South Florida football isn't exactly the same as NDSU for hockey. USF started playing football in 1997 as a I-AA program, moved to I-A in 2001 and joined CUSA in 2003 and then to the Big East, a BCS conference in 2005.
Are you advocating that NDSU play Division III hockey for a couple of years, become a Division I independent and then get some breaks and move into the WCHA in 8-10 years?