I hope the first installment is large enough to contain the Kalm flashback. I love that part of the game. It's the first time you see Sephiroth, the battles with him in your party are very impactful, and you get to see Nibelheim. That and Kalm itself illustrates the wider world outside of Midgar. It's all very effective.

Please no Genesis! FF7 extended universe stuff is so bad.