H_K found an Eastern Shipbuilding advertisement showing there conceptual design for the OPC. You can see it here: http://www.easternshipbuilding.com/wp-content/sdaolpu/2013/06/ESG-OPCFullPageWeb1.pdf
Not a bad looking little ship. Looks like with the location of the stack, the hangar may be offset to port. I don’t like the fact that the 57mm is sitting low relative to the bulwarks of the bow.
As H_K noted this does look a lot like New Zealand’s Protector Class OPVs.