Earlier you said you would have a problem coding her back into the game. Black Chocobo can put her back in your party by simply checking the PHS box. All you would have to do is have the end of her conversation flag her as active again... I think.
Also, just throwing this out there, do you remember the conk shell in the Ancient Forest? It has that unused path that leads to the cave. If it's not that difficult I think creating a walkmesh up to it along with a map to load with her laying down in it would be pretty cool.
Back in the day almost every revival thread mentioned that cave.
Yeah, I know about editing the save, i was meaning more like programming a scene to bring her back. I know how to make her available in the PHS with Makou reactor now
But it would only work if you have seen that scene though.
So instead, I think what I'll do is just add Aeris somewhere into the Forgotten Capital, and she can explain why she is playable again. You would be able to see this scene any time after her death.
I was thinking of making her reference these forums actually, I thought that would be really funny
Dont mind Cait Sith being there, thats just an effect of the Debug room.