I would be interested in a 12" to possibly even 14"-15" blade "IF" with "Thinner" (Not thicker!!!) than 1/4" blade and the balance and feel is done right.
I am NOT personally interested in "thick", heavy, massive longer blades.
If that is what Dan want to make and what others want to buy, then great, make them. I am all for "lots" of options. The more options and variety the better. But, I am personally probably going to pass on big, long, massive "Fatties".
I don't want anchor bars with handles. To each their own. I know a lot of people LOVE ultra thick, large, massive sharpened bars of steel = "Fatties". But, I have no interest in "Fatties" for knives ...... or much anything the term "Fatty" might apply to.
Big thick "Massive" knives feel "Awesome" in an: "Aunold" hold in the hand/show for the camera to drool on kind of way. Cool to own for "show" and "display". But, not ideal or preferred for my preferences for carrying and using - at least not for me, my uses, my preferences and my opinion. To each their own.
For me to be interested in blades over 10", I need the thickness to come down.
With thickness coming down, I prefer to have the weight redistributed. Usually, less tall near the handle (but, NOT flimsy and still sufficiently stiff/rigid) and more tall towards the tip: Like a bolo, golok or parang.
The DFLE and Battle Rat are very nearly optimized for their size (9.5" - 10.0" blades).
But, if longer than 10", I prefer to go away from a Dog Father shaped blade.
I am not as big on Kukri designs. I know kukri shapes work well for chopping, but I prefer bolo, golok and parang shapes for versatility.
I would have voted if there were thickness options of 0.1875", 0.20" or 0.22"
.