Square Enix has said that in Final Fantasy 7: Rebirth there will be a high level of freedom when exploring areas outside of Midgar.
Final Fantasy VII Rebirth
🎮 Freedom News
Final Fantasy 7 Rebirth Features Nearly 100 Hours of Content According to Game Director
Final Fantasy 7 Rebirth Out Of Midgar - Exploration Begins!
This is what we're all excited for, the big open world outside of Midgar waiting for us to explore it. : r/FinalFantasyVII
🎮 Freedom News
Final Fantasy VII Archives - MP1st
How To Beat Midgardsormr In Final Fantasy VII Rebirth
Final Fantasy 7 Rebirth: How to Win the Prize for Outstanding Performance in the Junon Parade
Preparing For Rebirth With 1997's Final Fantasy VII
Final Fantasy VII Rebirth Director Says Fans Can Anticipate A High Degree Of Freedom Outside Midgar, Experiencing Several Different Stories - Noisy Pixel
Final Fantasy VII Rebirth Hands-On: Exploring the Open World - CNET
Final Fantasy VII Rebirth review: not in Midgar anymore
FF7 Rebirth HYPE - FF7 Intermission 60fps - FINALLY Made It To MIDGAR - Chapter 1 (Hard Difficulty)