The GLOCK carbine is sort of like Bigfoot, the Lock Ness monster, and a drug-free Li-Lo ... often talked about but never actually seen. Many people believe in it but there is no hard evidence of any of these thing existing.Was he serious? They mention it a little after 2:50 in the video.
Now, I have "heard" the same rumors but haven't seen pictures, documents, or an actual timeline every once released or leaked from anyone associated with GLOCK or any or their industry friends.
I have every confidence it will happen someday. Will it happen next year? Only time will tell.