I have been farewell-ing Glock for about 2 years.
It won't happen. They are the Lays potato chips of pistol shooting.
I too reached a plateau of Glock shooting. The increase in performance was getting harder and harder to come by. I was happy with my performance relative to standards.
Improving my Glock shooting is what brought me to PF. I had accomplished my goals...so now what?
I decided to truly force myself to improve the TDA shooting. I liked the platform better in almost every way.
However for serious NPE carry, I still use a G26.