Haven't heard anything else.. but I was looking at some old Colonial/United Hockey league towns and saw a few possibilities:
New Haven, CT (the old arena is gone; but Yale's Ingalls Rink holds about 3500).
Chatham and St. Thomas Ontario not sure what size the rinks are.
Another on I just thought of was some New England area colleges: Worcester, MA (Hart Center on campus of Holy Cross holds 1,600. After losing the Sharks it may have potential or Meehan Auditorium on the campus of Brown University in Providence, Tsongas Arena in Lowell MA. Whittemore Center at UNH (Durham) holds about 6,500 and I know there are several in New York State RPI, St. Lawrence, Cornell.
If you get any of those would Hyannis MA be feasible? The arena is big enough to host the Hockey East Women's tournament. The main rink at the HYCC holds 1,500. Burlington, Vermont has 4,000 seat rink @ University of Vermont.
Herb Brooks Arena in Lake Placid, holds 7,700 (thought I had heard someone mention this as a possible ECHL destination, but can't remember where).
There are some decent sized rinks in the northeast which are possibilities, if the league could get some more good ownership involved (no poke at the present owners intended) the league could get organized and become something more comparable to to the SPHL talent level than the LNAH (or have them merge with the LNAH and get rid of a few teams and go with some better rinks and towns)