Personally, i think you got a hit with this one. It's never going to be perfect for everyone but it looks very cool and it will sell imo. Plus it has vast options for further adjustments and improvements in the future. Two birds one stone is a good place to begin, imo. A hybrid approach will probably please the most people. They can always add other forms later, even a battleframe type like in FF isn't out of reach. But as a start, i think it's more than great.