College Hockey News has a "customizer" function to their NPI data that allows you to go in and either change the outcome of any particular game or games, or plug in the outcomes of future games, and then see the effect on the NPI. I think what this feature does when you plug in outcomes for future games is figure that all of the rest of the future college hockey games will have a result that is the most likely result of that game, maybe based upon KRACH or something else, but I'm not 100% sure about that.
In any event, it's a fun feature to fool around with if you're bored.
Using that feature, it suggests that if UND were to win 3 of 4 against SCSU and Miami, and split with WMU, we'd stay in the three spot, most likely. It doesn't appear to matter whether our loss is to Miami or SCSU, which sort of makes sense given both series are at home and the two teams are in a generally similar spot in the rankings.