Lord only knows what we will see, I don't expect anything earth shattering though. Likely the GPT standard in certain models, maybe specific direct mount optic cuts to the commercial market. While I'm fine with the capacity of the various models, an actual Glock produced metal magazine would make a bunch of folks happy.
I really like the G26 and G43x, I think the 43x was more of a product to suit the 10 round bans and has driven development of a few other brands in that class. The G26 came out during the early stages of the magazine ban, took advantage of the existing designs(17/19) and has been a favorite since, it's my favorite carry piece. Having said that, I feel that a model that bridged the two with a metal magazine would be a good thing. Maybe the same concept with the 43 and 42, great little guns.
This is my opinion, with a carry gun and for most people, there is a compromise somewhere. Trick is being able to overcome those and be smarter than the piece of plastic and metal in your hand. For instance, I like the 26-the compromise is the grip height, trade off for the short height which is the most critical to concealment. I use the standard magazine and simply curl my pinky finger underneath the magazine, easy and effective. What do most do? buy extensions and end up with a G19 height. The other thing I do is use a G19 holster-avoids the "Keel" effect. WHat I call bullshit on is people saying the gun is to small, "my hand is big" Really--I've seen folks who know how to overcome simple issues and have huge hands running the 19 and 26 with ease.
Anyhow, carry on.