A lot of players went into depression when they first saw Aerith's demise. So why not for the remake, there be a sidequest to bring her back. It worked in Eternal Sonata with Claves, so why not?
Here's the setup:
There's a hidden area in the world where Midgar is, and in this area is the body of Aerith, who tells the rest of the party to gather the fragments of her soul. Once done, Aerith is back in the party, and her Exp is accumulated, and she has her equipment from when she died re-equipped.
So, what do you all think?