If Camillus would undertake a project like this, it shouldn't take near as long as the Fisk Bowie. They already have all the tooling for some basic slipjoint patterns. All they should have to do for starters is upgrade the materials, and perhaps pay a little closer attention to fit and finish. But even at that, the Camillus slipjoint I have is fine in the finish department, excellent for a production slipjoint.
Maybe if they had good success with some of their current patterns, they'd consider making Trapper with one wharncliffe and one Spey blade...