A Notice of Discontinuance is a filing to drop a lawsuit. It's a specific filing, so it doesn't seem like there can be any "of what" other than their (Cen's) claim.


http://www.law-pedia.com/notice-of-discontinuance.htm

http://www.duhaime.org/LegalDictionary/D/Discontinuance.aspx


Hopefully the company speaks out soon.