YET
Again, very true. But when you get right down to it, there really isn't a whole lot of places left for handgun design to go. We have maximum durability, reliability, safety, accuracy, lightweight and ease of carry, ergonomics, and affordable cost. There may be a few doodads here and there that will pop up. But overall I don't see anything Earth shaking left to be developed.
Ammunition is much the same way. They've got bullet construction down pat as far as reliable expansion, penetration, and energy transfer. Nothing left to invent. There may be some type of "miracle bullet" like the DRT round or something similar to it that may come along. But overall as far as conventional weapons, bullets, and actions, where we are at is pretty much where we'll stay. To me the Glock, Smith & Wesson M&P, and the H&K are pretty much all one in the same. Bill T.