Latest development:
They settled. Basically the university paid him $90k to not disclose anything. Any press inquiry will have to be done "in a collaborative" manner.
90k for the record is much less than his salary but I guess he doesn't much of a choice.
http://registerguard.com/rg/news/local/35956880-75/university-of-oregon-agrees-to-pay-matthew-halls-90000-halls-agrees-not-to-disparage-uo.html.csp#.WbuJWOCOpNk.twitter