I'm not sure, but i believe (Ending Spoiler!) (SPOILER)Rinoa is referenced at the end of it. in the little mini-clips of each world that roll alongside the credits, you see Leon open a letter, get a lovesick look on his face and a pink butterfly image floats up from the letter in front of his face. Then again, they immediately showed Aerith sitting on a cliff alone, but i somehow doubt that they would try to hook up Aerith and Leon. Final Fantasy itself would explode.