Here is a bit of psychology of warmode ganking:
Extreme PvErs who want to grind EXP and powerlevel insanely fast will turn on warmode to gain the extra 15% exp bonus.
Given its a new patch, lots of players will reroll and use POWERLEVELING GUIDES.
My tip to you would be to search multiple UP TO DATE powerleveling guides and see which zone comes up more often and head on there to farm players.
Hopefully this theory gets you some good kills!