Well, if people desperately want to datastorm, let them do it. For all those who don't know how to do it, one of the easiest way to prevent people from doing it the easy way (Nav-Map) is, for example, have not every object sitting on the plane. It's space, after all, and the Omicrons should be something very untamed. No lanes, no planes. There is a somewhat hardcoded limitation for asteroid fields to be never bigger than 60k above or below the plane - they will just stop generate rocks beyond those values. However, that gives us 120k of just vertical space to use. It's different with the horizontal space, from what I've tested so far. My test map is using huge values of solar placement, making it bigger than Cayman, where you have four minutes of just cruising to reach one jump hole to the other.
While the Nav-Map deactivation is like in Chi is hardcoded by the game, placing stuff outside the Nav-Map is easy, and ingame-orientation becomes really hard once things are off the plane.
