To go with Dan's suggestions - in slight variance
Lets just get rid of all TP's, TP chips, summon functions and wormholes and extend lootable pvp to planetside outside of city areas and have cargo missions implemented for space and planetside.
Lets introduce true stellar systems for space and the respective larger distances between those stellar systems - it should no longer be possible for a vehicle without warp to travel to anothyer planet in another star system in less then a few years.
Lets get rid of revive hopping in space and planetside and make players actually travel where they intend to go -> less revives and make an recently passed revive have a much higher revive range/power then a not yet visited revive closeby forcing players to make atleast 90% of the way to a new revive to actually revive there.
Make revives work accross serverborders to enforce this rule.
Make fuel tanks lootable in space and planetside - except an emergency reserve fuel tank which allows to travel at a set minimum speed to reach the next 'fuel station/auction'.
Introduce weight limitations to all vehicles and make avatar weight count towards them - make them use more fuel and travel slower when overloaded.
Introduce different craftable fueltypes which allow for more engine power and higher traveling speeds.
Introduce a pvp skill which reduces ammo consumption in pvp when attacking vehicles/players.
Introduce a racer skill which allows to operate vehicles with different fuel types more efficiently - less fuel consumption/more speed/power.