You want a way to encourage players to PvP more?
Its simple.
What do people hate the most about PvP? Time sink.
2.5 hrs to mine an asteroid for the cost of a rebuy? No way will they risk a ship. (Yes I know there are much faster ways to earn the amount needed for a conda, but unless you know the secret handshake a newbie will not know how to properly grind that cash.)
The answer is simple, buff monetary rewards for turn ins.
People will PvP when they don't think making money for a rebuy takes more than 5 minutes. I mean 5 minutes. Not 1 hour, not 15 or 30 minutes. Within 5 minutes, the cost of a rebuy for a Conda can be earned by any ship. I mean any ship. If you only have a sidewinder, you should be able to make somewhere the money within 5 minutes the amount to cover a rebuy of a Conda.
Again, people hate absolutely hate useless time sinks. PvP without a sufficient motivation to do it, via rewards, character progression, story ect. Does not offer enough up front enjoyment until you get gud, get a really grindy gud ship.
Atm, engineering basically makes pvp a horrible grind because everyone grinds their eyes out for a nice ship. By that time they know what works and what doesn't. There is simply too much useless grind in the game.
Grind is a disincentive to PvP.
Buff money rewards where you simply don't care when your ship blows or stop with the engineer grind completely.