I think that the EM Drive may move along a similar path but at a more rapid pace. As positive experimental results accumulate, they will be disputed by naysayers. Yet, assuming that the science is valid, preliminary working devices will soon follow and be tested in orbit, by NASA, and perhaps the Chinese, the European Space Agency, the Russians, and the Indians. In addition, tech titans Google and Apple are both sitting on immense stockpiles of cash and aching for new tech fields to conquer.
“an initial production run is expected soon”
We’ve been hearing it’s coming “soon” for several years now though.