Uh...we're talking about NIS, not NISA.
This. Actually, from what I'm aware of from some of NISA's representatives, NISA is actually doing well compared to the parent company. Also, remember that announcement where they said NIS was limiting the amount of titles every year? That didn't pertain to NISA - straight from an employees mouth.
Source:
http://www.siliconera.com/2010/07/16/a-message-from-disgaea-producer-souhei-niikawa/ (NickyD is Nick, one of the editors at NISA)