Revolvers probably won't die because of pocket carry alone. As the Hungary poster who replied to you made out, the pocket revolver is super stupid simple, packs a lot of firepower in a small frame where auto loaders also have low capacity, is vastly superior in terms of street condition reliability (especially with people who don't clean their guns), and the fact you don't have to worry about what shape a bullet you put into the cylinder, unlike the auto loader. It will still be a choice in that category for both professionals and less serious conceal carriers.
Hunters and serious gun guys will continue to use revolvers because of versatility. A revolver can shoot just as well with super light target loads as it does with maximum power loads; a S&W 29 will shoot a 180 grain cast bullet in a 44 Russian cartridge at 700 fps as well as it can fire a 300 grain bullet at 1,000 fps. Handloaders have almost unlimited range, between squib and overpressure at least. Flat nose cast bullets have no problems in a revolver, while the wrong ogives will give auto loaders big trouble. The revolver is also capable of far, far, far greater accuracy out of the box for a standard gun than a combat style auto loader because of fixed barrel. Big cartridges and big power are no big problem in the revolver, pistols want to keep OAL down on cartridges to get them to fit the grip, shorter the better, revolvers don't have this issue. All of this means serious casters, handloaders, hunters, shooters have very good reasons to use them.
They are a cheap gateway into bullseye shooting. An NRA study from several decades ago established the potential for off the rack COMBAT S&W and Colt revolvers to achieve 2.5-3 MOA using cheap Bullseye gunpowder and cheap lead swage bullets in 38 Special. People who talk about how 9mm Luger can be accurate bring up the fact that "muh expensive super match pistol with super advanced handload specifically designed for it can be accurate too" gloss over the fact a guy with a $300 police surplus Model 10 from Buds Guns and a cheap generic handload or match load off the shelf, not designed for the gun, can give him a run for his money! Cheap accuracy is where they excel to this very day.
Which leads to one more point on the combat revolver, they offer a cheap alternative to others for the purpose of a handgun that is both match accurate AND combat reliable. In order to achieve this in auto loaders, they must be custom made and built, usually better models with extremely high price tags. As mentioned, a retuned $300 surplus police revolver is combat reliable and match accurate, something you will never find in a similar price auto loader. A brand new S&W or similar quality offers a lot in this regard for the price you pay. There is a reason why the Manuhurin didn't die out so quick in special forces use.
> New projectiles and propellants might change the game though.
HA HA HA OH WOW. The only real revolution in gun powder in the last, what, fucking 70-80 years was better rifle powders that improved the capability of medium bore rifles and overbore rifles. Handgun reloaders have been using the same powders for over a hundred years in some cases, others are 80 or so years old, the newer ones are almost always knockoffs. Look at real factory loads and performance, there hasn't been, and there is no indication of, any powder revolution any time soon. If ever. Bullet design improvements are more important in regard to what you are mentioning, but even then there are limitations. You can only do so much with so much bullet and so much energy.
My points above are a counterarguement.