In an upcoming version update, a new series of job adjustments will be implemented. While this is likely not the completed list of changes, what has been revealed includes changes to the Warrior ability Restraint, further adjustments to many different abilities and spells for Scholar, and refinements to the Thief job trait Treasure Hunter.

For a detailed list of the planned changes, check below the jump, and discuss this on the Zam Forums.

From the official Final Fantasy XI forums:

• Warrior
  • The maximum weapon skill power bonus granted by the ability Restraint will be reduced.
• Scholar
  • Light Arts will grant a bonus to the effect and duration of Regen spells.
  • Dark Arts will grant a bonus to the effect and duration of Helix spells.
  • Tabula Rasa will grant a bonus to the effect and duration of Regen and Helix spells.
  • Tabula Rasa will negate recast times for Light and Dark Arts.
  • The learnable level of Regen III and Regen IV will be adjusted.
  • The MP cost and learnable level of Helix spells will be adjusted.
    *Planned future adjustments call for the effect duration of these spells to vary by job level, starting at a shorter duration and gradually increasing to its original duration at level 60.
  • The recast time for Modus Veritas will be adjusted.
  • The effect duration of Klimaform will be adjusted.
• Thief
  • Melee weapon skills will have a chance of enhancing Treasure Hunter effectiveness.*1
  • Weapon skills used alone will grant the enhancement at the same rate as standard melee attacks.
  • Weapon skills combined with Sneak Attack or Trick Attack will grant the enhancement at the same rate as melee attacks made with these abilities active.
  
  *1 For multi-part weapon skills, the calculation will only be performed for the first hit.