In the upcoming version update scheduled for mid-July, Square Enix has announced they will be adjusting the recently implimented Voidwatch battle system. Among the planned changes include adjustments to spectrum alignment boosts determined by players actions, the addition of messages that allow the determination of what player triggered a weakness on a Notorious Monster, as well as making the obtaining of required items for Voidwatch participation easier.

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From the official Final Fantasy XI Forums

The Voidwatch battle system is set to receive the following adjustments in the next version update:

• When obtaining voidstones, players will be given the option to receive only a single stone at once.
• New vendor NPCs will be added to furnish players with ascent items and voiddust.
  

  • Items will be obtainable in exchange for Campaign Points, Imperial Standing, or Allied Notes.
  • Multiple ascent items may be obtained at once.
  • These NPCs will take over the role formerly served by guards, Imperial gate guards, and Allied Forces guards, who will no longer exchange items.

• Voiddust will be added to treasure caskets in Grounds of Valor areas.
• The names of players who successfully strike enemy weaknesses will be displayed in the log window.
• A new alignment bonus will be added that will grant players who inflict damage on a weakened enemy a full-spectrum alignment boost based upon the percentage of the monster’s HP depleted.
• A minor full-spectrum alignment bonus will be granted to players based upon their Treasure Hunter effect level.