Great video and good looking game. That game has both depth and content which Elite has always lacked. Sure, it doesn't have multiplayer but neither does Elite for many players. Considering where things are now, almost five years after launch, Elite will never support half of what this lesser early access title has. Too bad.
On topic: OP, yes you are very dreamy. Not much else can be said.
Sarcasm doth not become thee Cmnder /end sarcasm>
Point of that (most rudimentary) flight sim wasn't about it's subpar graphics, or one dimensional, highly linear style of play (being a trader/privateer doing simple delivery and transport missions). ED already accomplishes these features well in the Trader Pilot Cmnder career track. And with far superior graphics. It's possible our Holo Me Cmndr might not be getting space legs as a functional feature in 2020.
Best case scenario is getting the ability to exit your ship or SRV directly to explore planets, gather mats on foot, SAR on foot, or even potential FPS with NPCs or other emergent PvP on planets etc etc.
Worst case scenario is still being constrained to movement (1st person POV view only) inside your ship. Be able to get up and move around inside the ship interior. FDev could add several standardized and immersive interior areas of the ship that players could interact.
If neither of these are possible (and we're still constrained as paraplegics to the cockpit seat) then one immersive way that FDev could integrate this feature is adding it to NPCs. i.e. allow you to view them boarding the space craft while docked at a space station. Or in burning/damaged starports when you're doing SAR missions to capital ships etc. As in boarding/disembarking the transport of passengers when docked inside the hangar bay areas. You'd be able to see your passengers/refugees board the ship