The thing about baseball (or any minor sport for that matter) is that no major decision such as dropping it would ever happen before UND knows their conference situation. It would be disappointing to upset alumni, donors, etc and go through the trouble of dropping the program just to have a conference tell us that we will gain membership but only after we add a baseball program. Only after we have gained membership in a conference, know which sports will be mandatory and received a guarantee from that conference that dropping a sport wouldn't be a deal breaker would the school even begin to consider it.
However, I don't see UND going that route for a long, long time. The athletic department will give all of the programs a chance to grow in DI before dropping a sport even crosses their minds. That is not what the move to DI is about.