I'd like to see Ruger make a .36 in the smaller frame. But drop the Patridge style sights. They look out of place on a cap and ball, even if it's a modern cap and ball.
Rather, I'd like to see Ruger develop a small, unobtrusive adjustable sight with a U in the rear and an iron bead on the front.
I'd also like to see Ruger make the same, smaller frame in .31 caliber. This would be great for grouse, rabbits, chukar, etc.
Make it with both 4 and 7-1/2 inch barrels, in .36 and .31 caliber. The 4-incher would be a good pocket pistol in the woods, the 7-1/2" would be great on the range and for overall use.