Dual hub shift
Cost will keep the technology less attractive, especially when you can buy a decent ready-2-ride bicycle with a front der setup for less. I would consider the new tech rear hub if I came into bicycle dedicated funding &/or the price dropped 75%.
Also, if a much taller hub flange was designed with a "step" towards the rim's centerline, 1x12 could see competition with even more 1x?? setups. .... 1x18?
hella crosschaining!