I think the AANJ was gradually introduced in the early nineties, first in some top hi-end models, then to all the Ibanez range...
If you visit Rich's site,
www.ibanezrules.com, you can examine all the catalogs scans to find exactly the years of introduction for the various models...
As for the wizard neck, this has always been Ibanez trademark, the wizard II being only the fatter version for low-end models...