Don't get too excited.
Even if it happens, they'll argue whether to produce it at HK GmbH or HK USA. By the time they decide to produce it at HK USA, they'll also have decided to drop their contract with Wilcox in order to open an actual HK factory in the US...yet still introduce a prototype at SHOT Show and list it on their website, ending in incessant vaporware questions on HKPRO.com while HK USA gets their own production facility up and running. They'll break ground a year later, but not build the factory until 5 years after that. By then, HK will decide to drop the P-Series match trigger from their catalogs, claiming a "lack of market interest and sales" (never mind they didn't actually put it into production). 3 months after that, 5,000 will be produced by HK GmbH due to some obscure contract with a large US law enforcement agency, but where no one can justify the purchase of the new trigger groups or even point to what weapons they actually went into. Magically, 400 will show up with open market vendors where people pay upwards of $500 for the trigger kits, finally getting them delivered 6 months after the fact. Unfortunately, 1 year later the BATFE will confiscate all 400 purchased match trigger groups because of legal technicalities, in that they actually belonged to the US Gov contract.
I'll believe it when they're actually delivered to joe schmoe. I wouldn't count on anything until then. HK is the master of vaporware, and the leader in the arena of where common sense is an uncommon virtue.