You guys expecting 3 parts are being too optimistic I think. I'm breaking these down by areas, as I think people have forgotten just how much stuff happened in Midgar, and how much stuff happened on Disc 2.
Personally, I'm expecting something like:
Episode 1
- Reactor #1
- Sector 8
- Sector 7
- Reactor #6
- Wall Market
- Train Graveyard
- Attack on the Pillar
- Shinra HQ
- Escape from Midgar
- Half of the Eastern Continent
- Kalm
- A fucking huge amount of assets need to be created here because of all the territory the flashback covers.
- Chocobo Farm
I'm expecting the first Episode to end before we get to the Mythril Cave. Basically, some excuse about us not being able to find any chocobo's to cross the marsh combine with a level cap for episode 1 making it impossible to make it past the Midgar Zolom.
Episode 2
- Mythril Cave
- Fort Condor (pt 1)
- The other half of the Eastern Continent
- Yuffie in the woods
- Junon (Lower)
- Junon (Upper)
- The Ship
- Costa Del Sol
- Half of the Western Continent
- North Corel
- Mountain Pass
- Gold Saucer
- A fuck ton of assets need to be created here for the various segments.
- Desert
- Fort Condor (pt 2)
- Gongaga
Note that after the Desert, you get the buggy and can return to the eastern continent. I believe this will result in a stopping point somehow.
Episode 3
- Cosmo Canyon
- Nibelheim
- Mt. Nibel
- Rocket Town
- The rest of the Western Continent
- The Far West Continent
- Wutai
- Temple of the Ancients
- Bone Village
- The Forgotten Capital
- Icicle Inn
- The entire Northern Continent
- The Snow Fields
- The Northern Crater
- Return to and Escape from Junon
I think the game will pause around here for Tifa to be in charge.
Episode 4
- Mideel
- Return to North Corel
- Fort Condor (pt 3)
- Lifestream (Cloud's Subconscious)
- The Underwater Reactor
- Going into Space
- The Sunken Gelnika
- The Ancient Forest
- The Materia Caves
- Whatever Sidequests I've forgotten
- The Raid on Midgar
- The Final Battle
Honestly, I wouldn't be surprised if somehow the Raid on Midgar and the Final Battle got pushed to a 5th episode somehow.