If you put a firefighter in a room with 2 anvils and came back in an hour, one would be broke, the other would be lost, and the FF wouldn't be able to tell you what happened to either
Seriously though, that all sounds good, but it also sounds expensive. I know me personally (career FF/EMT), I would be hesitant to take a knife that expensive and put it into service. The most expensive blade I carry is a $50 S&W rescue knife, which I got before the Gerber one was available or I would have that one instead. There is such a great risk of breaking, losing, or otherwise destroying my personal tools that I am hesitant to take something
too[ nice and be out my hard earned money.
Something else to consider for the knife is a good glassbreaker. That is an invaluable tool (plus if I am going to carry something, I want it to serve at least 2 purposes).
I really like your idea of making it non-conductive or insulated. At first I was thinking that in a fire, I would generally rely on a different tool rather than my knife when breaching walls, cutting wires, etc., but on an extrication you never know when you'll hit a hot wire these days! Especially on a hybrid or smart car. My rescue knife has a rounded tip so I can pry with it or cut a seatbelt without poking the patient, and if I pry into a panel that has live wires running to it, zaaaap. Plus, if I fall through a floor or become trapped in a collapse, I may find myself with only the tools in my pockets to get out (anything in my hands may be ripped away), in which case a knife may indeed be needed to help breach a wall.
Experience has also taught me that anything hanging on my gear (as opposed to being in a pocket) is waiting to get lost! I clip my knives to the inside of my pockets like you would your jeans pockets, and I also have some special pocket inserts that are designed to hold tools and keep them in the ready position. I have some sharp stuff secured to them as well.
At any rate, the knife you are describing would be awesome, and I would surely jones for it, but I don't know that I could convince myself to pay for it and risk losing it! Course, if you make one and need a tester for the prototype...

Seriously, you do have some great ideas there, so please don't take my post negatively, just sharing my little opinion. I'm sure there are others that feel differently than me!
Oh, and as far as serrations, my rescue knife has some rather large serrations. Think more like waves than saw teeth. It makes short work of webbing, clothing, seatbelts, etc. That coupled with a rounded tip make a pretty versatile knife for what I'm doing. It also has a spring loaded punch in the handle for breaking glass.
Ok, so I've re-read your post a few times now, and I keep coming up with the fact that it would be a pretty sweet knife but just a bit too expensive for me. If there was a way to make it and slash the prices, you would probably sell a million of them. Maybe make it so that you can only order it at a discounted price if you provide a letter from your dept. that you are an active FF or something? I don't know. Man, you got me thinking now

I may come back to this thread later with some ideas hehe.
BTW, the wife has hinted around that I may be getting an orange handled Zing for XMAS to carry in my station clothes!