If you want a roleplay explanation why then there you go: premature opening of the hypergate caused energy distribution malfunction, which was what Order predicted to happen and what they have precisely relied upon to thwart the Nomads' plan. Draining the energy reserved the sphere into sustaining the hypergate for a short time, and improper configuration (Nomads used it to harvest energy for themselves, so it wasn't in "Hypergate" mode nor configured to be so at the moment of activating) caused the severe damage to the system followed by segments holding it all together out of sync. Of course it didn't explode or anything, things don't always explode nuke Hollywood-style when they're critically malfunctioning (they, surprisingly, just stop working or working not as intended, out of characteristics), but anyway the damage was serious nonetheless. Majority of the Nomads (I estimate approximately 97-98% of their Sirius populace, counting in those who didn't survive the aftershock) effectively got sucked into the hypergate, the rest within the radius and a bit more of the sphere died out of energy deprivation. It's just those who didn't made in time to the sphere have survived. Consequentially with nobody to main such vast and alien structure (which was operated by the Nomads so pretty much only they knew how to work with it) I assume the Order have salvaged what they could for research before the area became too dangerous for them to travel. Remaining Nomads who came after salvaging what's left since they can sustain such volatile environment and used that to build up Iota/99 facilities. The sphere continues to degrade and slowly fall apart with remaining Nomads not having resources to fix it, not to mention constant Order interference. Effectively forcing them to find other means of energy source and harvesting methods instead of the sphere which supplied them all they needed.
To simplify it all draw a parallel between activating a hypergate and overlocking your PC to a critical level it can work on only for a brief amount of time before hardware overheats and burns out. Not saying that hypergate functionality is out of specs, just saying it would require proper configuration in energy distribution (read "special cooling" by analogue), otherwise goes poof after reaching critical stage. Your PC isn't going to explode instantly, it'll just stop working from the severe damage to the system, same here.
If that isn't convincing then I am afraid I don't know what is...
Quote:Is there any priority list to see what is upcoming or what is in the works or planned?
For obvious reasons to prevent game spoiling such information is typically restricted to development team. Myself I am just a former member of it though. Considering that nobody else picked up development of Nomad and the related content (and have a sad feeling nobody actually will) I guess it is still rests on my shoulders in some partial way.
On a side note I don't think there is any benefit in arguing with me, nothing to win here.