No doubt that the Bowie design has become a classic over the centuries because if it's utility as a fighter as well as an all around knife. Everyone and their brother has done interpretations of the Bowie, and many of them are very good indeed. But, I don't see a fit in the GSO lineup. Clearly this is just my opinion, but an opinion that was developed by getting to know Guy's philosophy in knife making. Guy might come out with a Bowie style in the future, but I would be very interested in his design philosophy while doing so.
Some here might consider the use of the spear point Saber ground knife to be boring as it is showing up in models accross the entire size range of the GSO line, but none can argue with the utility of this design for the purposes it is designed to accomplish. I do think that over time there is room for Guy to explore additional designs. I am just not certain that a Bowie will be the first departure from the Saber ground spear point. But I could be wrong.