In the Encyclopedia are many things linked to each other. I would link all entries and mentions in the pages to the Encyclopedia.

Click on "Something" --> Page "Something", In the list is "Energy cells" --> Click --> Open page "Energy cells" --> Click back

While holding a button (for example "^ °" (zirkumflex)), a quick key overview should be visible. With a little bit transparent background, showing most of the key bindings.

https://forum.egosoft.com/viewtopic.php?f=180&t=402794&p=4759427#p4758766

Enemy sightings/

History

It would be nice to see a general history of faction strengths in a sector so say in Hatikvah's choice my traders are attacked by scale plate pirates fairly often, but its usually just a single ship.

it could say something like "Active Hostiles: Scale Plate Pirates, Fairly Weak" or in a Xenon Sector "Active Hostiles: Xenon, Overwhelming" or have a time component like with trade data.

Also a Faction History like "This System is Ruled by the Paranid, this system was once ruled by the Argon Federation"

When i build ships or change the equipment, the new ship or equipment is beeing visible constructed (or "drawn"). Lets use all these walking people in the station to construct the equipement/ship visually (with a "glowing/burning/welding" effect). Immersive!

When using Auto Trader you receive messages pertaining to their action and trades, it would be useful to see what the actual profit from their trade was in this notification,

or a graph on an information page showing the amount spent vs the amount earned- per trader- per time cycle, to better understand how profitable an area is/was.

The speed in this game feels great. Especially at the big highway. Lets make some racing mission.
Probably, add boosting and more control at the highway to get an advantage against the competitor.
Without competitor, drive as fast as you can to a target station and bring - for example - a small package of something. But dont make the mission "loose" if you were not fast enough, just descrease the reward (prevents completely frustrating).