Sorry if it wasnt clear but I regard xenon as inhabitants of the gate network
Meh, calling them inhabitants would be a stretch. They're really little more than a mechanical virus at the moment.
Jumpdrives should not return imo, and this is the perfect lore reason for it.
I see it differently. Jump drives should return. Maybe not now, as we don't really need them. But with the ever increasing universe, they become inevitable at some point. And with the way sectors are set up in X4, they'd have less impact on the game as in X3. Unless of course the people advocating for player owned/produced jump beacons get their way of course. Then it'll be a mess. Jump drives, the way they worked in the past games before the beacons were added, were much less problematic in terms of balance than many seem to think.
As for highways and early versions of XR, I preferred the early versions of highways where you had multiple lanes... collisions in highways is something that absolutely destroys my immersion, I hate it. The lanes idea was sound, but general hatred of XR (due 99% IMO to it being broken, not because of design issues) lead to egosoft losing focus and confidence imo, and they ripped out good ideas in an attempt to fix things that wernt broken.
I'm not sure which highway version I liked more. But the multi lane version from 1.0 wasn't that great either. Too much gimmicky minigame for my taste. Especially with the spawned civilian ships inside of them, which you had to evade.
Lots of people hate highways. Me? I dont get it. I think the only way to make space interesting is with sector/system design based around highways and points of interest... the only way to give something structure, is to give it... structure. Theres no way to compromise. X4 has highways 'lite', a compromise. And by being 'lite' implementations they dont bring the huge benefits that systems designed around them do, like in Rebirth. Rebirths sector/system design is a masterpiece.
There's also the fact that the first four star systems in XR were kinda badly designed. The highways were a bit too much of a rollercoaster, and there was not much to discover far off the trade lanes. Also, the transition between zones (not the sectors!) was quite visible and buggy in earlier versions. And don't get me started on the general layout.
Overall, I think X4's map design is better thought out than XR's. Even though you still don't find a lot of interesting stuff far off the sector center. But I also have to say I only got the first XR DLC. Never bothered getting the second one. I don't buy DLC's when the basic game isn't my taste.