I'd really love to see a Spyderco Bayonet / general purpose military knife.
There is currently little in the way of 'modern bayonet,' making it a cool niche. Traditional bayonets have poor handle ergonomics, mediocre blade steels, and poor edge geometry. So a high end spyderco bayonet would have little competition.
I'd like to see something like a Spydercoized version of the M7 Bayonet dagger. Very crude sketch I just did in two minutes:
Basic goals:
-Double edged blade 6-7"
-One edge full Spyderedge serrations, one edge plain, to allow the user to have both edge types for field tasks (think like a fixed blade Dyad concept)
-Deep and thin hollow grind to allow dagger blade to still have good edge geometry
-Integration of dual thumb ramps for more Spyderco like ergonomics
-General Spyderco magic on the handle to improve ergonomics and traction
-Bayonet mount
The double edged, one side serrated one side plain, I think is something that would really make it tremendously useful as a field knife. Especially for users without the ability to sharpen.