Leavers in lockdown is a significant issue for the PvP community.
Currently, lockdown works by having all players pay 200 crowns before the game, and the winning team gets the split of the crown pool. In order to discourage leaving a match in lockdown, I think it would be best if all players deposited 1000 crowns at the start of the game, 800 of which would be returned to each player after finishing the entire match, and the other 200 per player be deposited normally.
This would encourage people to stay to the end of the game so they can keep their 800 crowns.
But then you punish too hard the people wich had real reasons to leave.