Nice Catch
School is Westminster. If they or any other school is leaving, I don't know where they would logically go.
I have thought that CWRU might return to NCAC as a football affiliate, keeping CMU as its rivalry game, but I have no knowledge if that is being considered. NCAC did accommodate Wabash-DePauw Monon Bell Game before DePauw joined NCAC.
Not playing a full round-robin is less than ideal. In 2017 co-champs CWRU and W&J didn't play one another. In 2016 Thomas More (8-0) won the title without playing runner-up CWRU (7-1). There was a year in NCAC when Kenyon nearly won the title without playing either of the two other contenders.
Only playing conference games limits SoS, which could effect being chosen to host a playoff game.