they will never bring out a carbine, glocks philosophy is why change a good thing. and to be honest i dont blame them, the only real difference since the 1980 g17 is now the grip has more "grip" and a rail to put a flashlight or what not , other than that .... no real improvements.... them just adding an adjustable grip, like the m&p , just makes sense, lots of LEO, and mil out there with small hands that dont fit the glocks, they would be smart to not change the function or the guts of the matter. and get rid of those new g4 style grips on the slide.
but on the carbine, they will never make one ,. what are they going to do, bring out another AR , like every other company is doing . or bring out something that looks like an mp5 or uzi just not as good, LOL. it will never happen. HK makes the carbines/machine pistols etc and have been doing it longer, have the reputation for the better products in that category . and glock doesnt want to compete with that.
am i saying i dont think they should, no, would i be interested in one from glock. ABSOLUTELY