The only parts that would be a concern would be in the bits you can not see or readily clean such as around the lock mechanics. There could be problems there with crevice corrosion, so a high wear and corrosion resistant coating might be an idea, or have it very easy to be taken apart so you can clean and lube all the parts on a regular basis.
I would actually like to see folders.
A nice slim one with a 1/8" clip point blade with a full height flat grind and a thin edge (0.010-0.020") for every day work [possibly even a hollow relief this is starting to look not very Busse like - but if the lock is decent I would still want it]. A traditional tanto [not the Cold Steel no-belly tanto] 3/16" thick with a full flat grind and a moderate edge profile (0.025 -.035)" for heavier work. Of course another one with a 6" blade, 1/4" stock with a 0.035-0.045" edge profile would have merits as well.
Full convex grinds could be argued for those blades as well, but the flat with secondary edge bevels would be more well recieved in general for sharpening concerns. Since we are just playing with ideas, why not have a dual profile. One plain edge blade and one with the Busse serrations for the moderate and heavy duty folders. I am not the type to make internet commando threats, but if this dual 1/4" 6" folder gets made and I don't get dibs on the first one, I will seriously make a trip to Wauseon and intruduce the concept of newfie hospitality fueled by a couple of bottles of Screech.
-Cliff