Good work to the staff team for making fixes to warp pvp such as removing enderpearls, elytras, chorus fruit, and the invisible top part you could stand on.
However, there are still changes I feel like could be made to make warp pvp better.
I'd say the biggest issue surrounding warp pvp is the naked people who just watch gsets fight and try to swoop in for the loot. This can easily be fixed by making the graves so only the person who killed the player can get the loot. This makes sense because its warp pvp and the person who actually pvped should be rewarded, not the naked. However, these graves should only last a short while so it doesn't become a whole graveyard. Another alternative is only the player who killed the player can pick up the loot from the ground.
Another change could be removing /back after dying. Even if there were no graves, the player could just /back in 2 seconds which is quicker than you can clear your inventory to pick up the rest of the loot.
Also, the combat tag removing once you kill someone needs to be changed as too many people are abusing this to escape fights. All you need to do is kill a naked in 1 shot then you have no more combat tag and can /spawn or run back into safezone.
Those are pretty much the main concerns. But something quite farfetched (just an idea) is rewarding players money by killing people. The amount of people at warp pvp who don't pvp is absurd. Why come to warp pvp if you're not going to pvp? For example, you could maybe incentivize pvp by rewarding $1000 if you kill someone in a gset or something. (Yea this idea kinda weird but interesting)
To also incentivize pvp on the server, there could be a ELO rating system, with leaderboards (this might already be in the works idk). And then the top 3 players or something could get rewards like in game currency, loot, or even something like 5 credits for #1 player, 3 creds for #2, and 1 credit for #3. The ELO system would also just be cool to see who the top pvpers on the server are and see where you stack among others.