It might be worth contacting Hogue and expressing interest. I know I did. I wouldn't count on results but sometimes, getting enough emails really makes a difference as companies consider new products. It takes all of a couple of minutes to write an email or whatever.
I had initially contacted Hogue about RSK scales. The person on the phone said it was the first time they heard that request. I mentioned that I had seen many people wanting scale options on the forums, etc. Since those people hadn't contacted Hogue directly, and Hogue apparently don't spend time scouring the web for mentions of their products, they didn't know it. (I'll certainly reach out again regarding Deka scales.)
Given my experience with their handgun grips, which come in different materials with all sorts of options, I'd love to see them offer some different knife scales. In the meantime, be sure to post any mods. I'd love to see how it shapes up.