The Governor "Frontier Justice" XVR with a 4" half-lug barrel, adjustable rear sights.

A Magnum variant of the Governor built on the X Frame chambered in 460 S&W Magnum and .410 Bore 3" Shotshells.

I'm a fan of the combination .45LC/.410 Bore Revolvers like the Taurus Judge and Smith & Wesson Governor, but I'd like one chambered in a more powerful magnum cartridge. Taurus makes one called the Raging Judge chambered in .454 Casull/.410, but it's massively overbuilt, extremely heavy, and doesn't look anything like the regular Judge or Governor. Furthermore, unlike some other Taurus brand firearms, the Raging Judge isn't bargain-priced, ergo if Smith & Wesson chose to compete with it, the price difference between the two would be much closer than it is between the Judge and Governor, thus making it more than just an attractive alternative, but an all around better option.

The versatility of such a firearm would be unprecedented, considering that it would be capable of chambering .410 Bore 2.5" and 3" Shotshells, .45 Colt, .454 Casull, .460 S&W Magnum, and .45 ACP with moon clips all in the same configuration without needing to swap out the cylinder or anything. As such, it could easily be marketed as the ultimate Wilderness Defense Revolver, capable of handling anything from small poisonous snakes to a mighty Grizzly Bear.