There's already a large discussion under the DI thread. Mostly talking about the doom and gloom of a Big 10 Hockey Conference.
On the ACHA side I wonder if this will spur other top ACHA teams to join the NCAA. Lindenwood's women's team is already leaving for the NCAA and men will probably in or a little after 2012. If Penn State leaves for the NCAA as well- there goes some of the powerhouse teams, and esp. in the case of Penn State- a big name team/credibility.
Teams like Rhode Island, Ohio, Delaware, Liberty, Rutgers, etc.. all play Penn State most years (and this year) taking out a team like Penn State reduces not only a top competitor but a big name. Teams like Lindenwood are less known by general sports fans, but fairly well known within the college hockey community. Penn State, Lindenwood and other top programs have professional, organized hockey programs, and put lots of money and effort into them. They help reinforce and add to the ACHA’s reputation of a highly organized and well respected club sport organization.