I hope they don't go for to much perfection with the Neptunes... This still is an arms race and difficulty rising exponentially is still a big part of mining. no..?
bottleneck with controller boards

that's the simplest component of the whole miner. Could you please explain Orama..? I'm not sure I'm believing this unless you/KNC can explain with more detail. KNC have pulled miracles in the past with bigger volumes and now there's a bottleneck. I'm sure another PCB manufacturers that can make it happen if existing manufacturer is busy.
Also. didn't KNC tell us to keep BTC handy for these Jupiters. What's changed..? Fear of Neptune refunds..? by the way they sold out this shouldn't be the case.
Come on, we're all men here.. spill the beans even if some will get upset I'm sure we'll get over it.