ACEMCO (who had that great run at Le Mans this year, briefly leading the GT class before their Ferrari engine pooched) are running 1 car, eventually 2, potentially becoming a factory team. Terry Borcheller convinced the team owner to take a look, and the rest is history.
Also, it appears that the restrictions will be fully lifted by PLM - with a sale in China, I believe.
http://www.imsaracing.net/imsaNS.cfm...151642ALMS.htm