If you're wondering just how the coming 10 year anniversary's PvP content, the Tarren Mill vs. Southshore Deathmatch BG, is going to work then Brian Holinka, senior PvP designer, has answers for you.
@IAmNotAkira The old honor system is not coming back. The SSvTM deathmatch has some nostalgic nods to the old system.- Holinka (@holinka) August 8, 2014
He goes on to clarify that making kills causes you to go up in rank, which also makes killing you more valuable to the enemy team. Since this is purely a deathmatch BG, adding a system like this adds a little metagaming to it - it's not just mow down everyone, you want to try and find and kill the best killers on the enemy team. Similarly, if you yourself are too good at killing, you become a target. I like the implication of the system.
I'm hoping that tower becomes some kind of murder death kill vortex. Oh, we would fight over that stupid tower for hours. For nothing at all. Memories.