First of all, I'd just like to say a quick hello. I have just wandered onto this site as a result of LeonBlade's excellent analysis of the January ATR gameplay trailer, and I've been impressed with the level of discussion here, so you're stuck with me now.
Anyway, I have a minor quibble/thought relating to the link Death Penalty just linked with Nomura's comments after the reveal trailer. And more specifically in regards to Stella still being included at that point.
I came into this late, meaning I was not following FFXIII-Vs and it didn't hit my radar until the name change. That puts me at a disadvantage for some of the conversation around the game, but in this one instance, I believe it's an advantage as I am able to view the whole timeline from a wider angle and without as much emotional attachment to any individual aspects. I've heard time and time again about how different FFXIII-Vs was compared to FFXV, unfortuntely mostly via gamefaqs, which is full of hyperbolic and hysterical responses to everything ever. However, I believe that belief to be based on a series of misunderstandings and I think the game really is very close to what has been envisioned ever since the project became stable, and conceptually since the very beginning.
I've watched every scrap of footage there is on the internet again and again, and I did it again shortly after the last ATR in the middle of a hype session. This last time, I watched them all in succession and I was positively shocked as to how consistent it was from the moment there was an actual structure of a story written. Keeping a thesis down to a term paper, the only story-related element that appeared to have changed was Stella's removal. More recently, I'm not convinced even that is completely accurate.
Similar to that first scene with Noctis being a badass on the stairs, I believe all PS3 era footage of Stella to be purely conceptual. That is, there was no actual outline of a real story, simply Nomura demonstrating the genesis of his idea, particularly the emotional theme. By the time the first reveal trailer comes out, you're seeing young Stella running through the field and you're clearly seeing the Stella PS4 facial model in the collage at the end, so Nomura was totally right in saying that Stella was still in the game at that point, but that was clearly the role of Luna. Everything that made Stella what she was was already gone. To the point that I imagine that the only reason they renamed the character to Luna was to differentiate this character from the expectations set in the earlier concept shots. Stella wasn't lost to the FFXV conversion. She was lost to the story being written, or more accurately, never existed at all.
The same applies to many other things that have "changed" as a result of the shift in focus, but I believe that people think those things changed because the developers, particularly Nomura, had been very misleading and confusing about their intentions. That shift being an illusion only visible to those who were following closely from the beginning. Honestly, from what I can gather, and believe me, I've done my research, the only thing that has gone past the "what if we..." stage that wasn't included in FFXV is the ability to switch characters on the fly, which is purely a gameplay decision and one that I happen to agree very much with in context with the feel of this game. I feel like it makes it convenient to categorize everything into this shift from FFXIII-vs and Nomura to FFXV and Tabata, but I don't think it's nearly that cut and dry. I very much believe this game actually has been far more consistent than it would appear to anyone who was following it so closely from the beginning, and that it's the story (and other natural factors that arise in the process of converting a basic concept into a solid, tangible work), not the shift, that mandated changes, and that was going to happen no matter what.
Basically, this IS still very much FFXIII-Vs, and anyone who feels like the original was this completely different game is filling in an awful lot of blanks in their own mind to arrive at that conclusion.