Opinion: If HK stops production of the USP series, then they should get to work on the P40k series of handguns. It would be exactly a USP with metal magazines, pic rail, some slide serrations and changeable grips(maybe). In other words cosmetic only. If you are going to make a full size pistol, make it robust like the USP45. If you are making a carry pistol, make a striker fired like the VP9SK.