Personally I would love to see a mechanic that could make it easier for non-PKers to dip their toes in the water, build up some courage and skill to engage in it more. For years I've wanted to see a way to make PK more approachable for the unskilled PKer.
But I can also see issues from it that others have mentioned above. The existing all-risk PK landscape definitely favors the skilled veteran PKer who knows how to track down the best gear quickly, who has OOC friends who can stock him with consumables and keep their equipment highly enchanted at all times. These benefits can be so overpowering in the PK game that they can make a lot of less-skilled players inclined to run away or try to avoid PK at all costs. Losing all that PK-boosting EQ/consumables/allies can take potential/wannabe PKers out of the PK game for weeks or longer. Unfortunately, it tends to compound; as you lose PK, you become less capable of competing in PK, you lose the ability to hang onto decent (competitive) equipment, you die quicker and more easily every time, you often end up giving up and rolling a new character. I've seen it countless times.
You need advanced, skilled, competent PKers with ambition and greed to drive the train. There needs to be definite, tangible benefits to PK to keep those achievers invested and aggressive. But you also need a playing field that's level and safe enough that the potential/wannabe PKers also have incentive to participate, maintain, and engage.
I didn't cast a vote, because with all my years admin'ing here, I haven't found a solution that benefits both of those constituencies.
