I'd like to see a stainless steel J-frame in .22 Long Rifle, and a companion piece in .22 Magnum.
Adjustable sights.
3-inch barrel
Round butt, with rubber grips.
This would be a wonderful survival gun.
Macho posturing aside, if you have to live off the land for a few days or weeks, small game will constitute most of what you'll encounter and eat.
With the .22, you can also carry many more cartridges for the same weight.
The revolver is better than a semi-auto as a survival firearm, because there is no magazine to lose or become damaged.
The revolver is complete and utterly reliable, though reliability is perhaps not as crucial in a survival gun as it is a defensive gun.
A 3" stainless steel J-frame with adjustable sights in .22 LR would be about perfect.