@Jyu_Viole_Grace Probably yeah, it's only the first part. I heard from Reddit posts that it was something like:
1) Midgard entirely until you make it to Kalm
2) Kalm with flashback all the way till Cosmo Canyon.
3) Nibelheim until Cloud goes wheelchair
4) Cloud wheelchair till end of the game.
Course, it's all just rumors. Kalm all the way to Cosmo Canyon seems pretty huge as part 2. Maybe way too long for space carrying lol (could be wrong). If it's actually true, that's pretty nuts.