http://forum.square-enix.com/ffxi/threads/13536
Don't know if this got posted here yet or not.
Looks like there will be a new "line" of Voidwatch NMs for Voidwatch "veterans" who have already completed the 3 established "lines" of VWNMs, and a second new "line" of VWNMs available to all, even players "new" to Voidwatch.