Your picks are great, and could be considered not only game-changing, but just-about-revolutionary (maybe more evolutionary <grin>). With far less "snazziness" in the differences, but a fairly big deal to me, I think the new Omnia ZRS from Norica could be considered a "game-changer." Personally, I have never really liked spring or air-piston break-barrels, due to all the (to me) outright weird and unnecessary movin,' shakin' and kickin' they produce! Far too much trouble to easily hit anything with the type and less than utilitarian (again, to me) and besides, I've always had something of a hard time even wrapping my head around the basic idea of an AIR-rifle that kicks! ;-)
Anyway, although it's been tried before, I think Norica now has nailed it with their new Omnia ZRS. ZRS meaning Zero Recoil System, of course, and it really is ... ZERO recoil! When I pull the trigger, there is absolutely no, as in zero, bouncing around or kick of any kind the shooter will experience with the 'new' type! Once the technology matures (maybe "IF" the tech matures would be more appropriate), I think it could have a pretty significant impact (sorry!) on airgun sales. It's just as difficult to cock as any other high-powered breaker, but amazingly, it really doesn't wiggle, jiggle or kick (nothing the shooter can discern, anyway), it's very accurate using the same second-nature shooting techniques that work with just about any other rifle ever made, and it has changed me from a total "nossir, I don't like it!" airgun hobbyist into one that now can see break-barrels becoming useful and utilitarian additions to my collection! That's just me, of course, so whether it actually turns out to be a game changer? We'll have to wait and see, but it's certainly changed how I think about such airguns. Maybe the future really will be so bright I gotta wear shades!