I'm *very* excited about this. Everyone knows Aeris is meant to be dead, but I'm a fan of having the full cast be playable, and Aeris' death leaves a
gaping hole in the party's roster. I agree with the above poster regarding the weapon, but really she needs to have a full set of 4-6 if it's possible to do.
If it isn't, then luckily she has a few weapons that are 'extras' (non-sold) and can be modified to make her better during Discs 2 and 3 without destroying her in Disc 1.
Here's what I'd do:
Princess Guard could be converted to a true ultimate weapon (8 paired slots, no growth, no item description, 80-96 atp)
Wizer Staff can be upgraded to a disc 2 quality double/triple growth weapon and relocated.
Fairy Tale can become her regular growth late game weapon (70ish atp), available as either a bought or found weapon.
Good luck! I can't wait.