Definitely a vote rework would be nice. However, not by a whole lot.
I guess I'm trying to think a way of what vote books are currently used for in priorities.
1. Bonus Xp/Points.
2. Raids points boost, very low amount considering a vote book currently costs 8m for a 5% bonus, whereas raid boosters are around 14m for a much higher incentive.
3. Pest control points.
I know other options are used, but vast majority always choose bonus xp.
With voting you wouldn't would it too overpowered, but with that at the moment there's only a little incentive (unless your a lower xp rate gamemode)
A voting rewards systems like suggested above would be absolutely awesome. A 1-30 day voting system that would allow players to maximize their votes.
Just my thoughts.