What FF7's Rebirth Title Means After FF7 Remake

screenrant.com:

Square Enix has revealed that the next entry in the Final Fantasy VII Remake series will have a new name, as it will be called FF7 Rebirth, rather than something having a name like FF7 Remake Part 2. The reason for this change is because the series is no longer remaking FF7, as FF7 Remake ended with the characters fighting manifestations of fate so that they could be free to go on a new journey. This raises the question of why Rebirth was chosen as the subtitle for the second game?

When Square Enix revealed the title of FF7 Rebirth, it also announced that the remake series will be told in a trilogy. This means that there will have to be a lot of changes going forward, as FF7 Remake only told an expanded version of the Midgar section of FF7. There is an absolute ton of content left to cover in FF7 and it's unlikely that two games will be enough to cover it all, especially if the developers are planning on adding new content, thanks to characters who are now alive in the new timeline, and the addition of content from the Compilation of Final Fantasy VII.

Related: FF7 Rebirth Repeats The First Game’s Biggest Mistake

FF7 Rebirth will follow some of the events from FF7, as the trailer showed the Kalm flashback sequence, as well as a glimpse of Aerith in the City of the Ancients. It's clear that FF7 Rebirth won't be a straight adaptation of the story of FF7, which is why the remake series has dropped the number. It's likely that the «rebirth» referred to in the title is referring to specific characters or concepts, thanks to the new direction that the story is going in.

If the title is referring to a person, then the most obvious choice is Zack Fair. The ending of the INTERmission DLC for FF7 Remake Intergrade confirmed that