Added: additional swift etherealness, ethereal jaunt, nondetection, and the spell immunity series. Dropped several spells that were extremely specialized and didn't quite suite the theme.
Added: Boundless Sight, a form of supernatural awareness that borrows the mechanics of the Lifesense feat.
Added: Advanced Learning, with some extra tweaks to ensure that the acquired spells acquire a void flavoring and are compatible with void disciple class features.
Traditionally, Wisdom as a casting attribute is reserved for divine casters. Since the shugenja already solidly fills the role of a divine elemental caster, I'm trying to avoid that particular piece of intellectual real estate.