I don't see the value of the inboard spokes relative to the weight and complexity that they add. If the outboard flanges need room for more spokes, just make the flange diameter bigger.
Regarding twisting of the spokes, there may be some advantages in damping, and distribution of shock loads. But if you figure the cost with labour included, I can't see how twisted spokes can be competitive with a wheel of the same mass with conventional spoke pattern that is designed for the same mission and longevity.