Here's what I've found so far (FF2us 1.0 headered):
A000D-A001C Auto-Battle Enemy Set Pointer (xx00 = Overworld Enemy Sets, xx01 = Underground/Moon Enemy Sets)
A001D-A002C Auto-Battle Pointers (2 bytes, reverse and add 0x90200)
A002D-A0066 Auto-Battle Data (00xx = spell, 01xx = item, Cx/Dx00 = command; separated by 0xFFs)
A0067-A0075 Auto-Battle related? (enemy set to transition to?)
A0076-A0088 Auto-Battle related? (other auto-battle related enemy sets?)
If you can figure out what the last two data sets are, please post them.