I saw Tim at Military Arms Channel was discussing the Glock Gen 6 and the possible changes to the new models. He created a survey on what features people would like to have.
Likewise, I just created a petition for a manual safety - it probably will not appeal to many current glock owners, but some may be interested - and will certainly attract new user to the brand.
Of the manufactures Sig, S&W, Ruger all seem eager to deliver features that owners request. Glock is slower to respond and needs some encouragement. Hopefully, a petition with enough signatures will motivate them to offer a feature that untold numbers of people want - But end up having to go with a competitor’s product, because it’s not offered.
I would be more worried about a Springfield XD as the striker is cocked on those. Glocks don’t go boom if you don’t pull the trigger. Why do you want to introduce another component to the system. The more parts there are the more chances of something failing at the worst possible time. Do you want to put safety’s on revolvers too?