Odin needs a new ride!

Given that Odin and the queen are in love with each other, maybe like the King in FF4, she could become a summon post-petrification, albeit out of pure love, and she could join his side as an Esper (and allowing the player to keep Odin, of course.)

It's literally a two byte change plus a sprite replacement, as I infamously realized. If you want to spice it up, there are at most three lines/captions that have to be edited, and a little more event editing is needed if you want to make changes to the  "get Raiden" scene itself.