I hope no one has already made a topic about this but I want to add another piece of possible evidence to the Rebirth Theory. I myself am still not sure if the Rebirth Theory is correct or not but here's something to think about, if you haven't thought about it already. We all know that each of the Foretellers represents an animal. But I just noticed today that each of those animals can be compared to the current Keyblade Heroes, particularly in their fighting style. Let's look at each one individually:

 

Ursus - Aced's animal is the Bear. A bear is a land animal, usually solitary and a powerful fighter. Terra's name means 'Earth' or 'Land'. He spends much of Birth by Sleep avoiding his friends and he is a powerful fighter who uses 'heavy, physical strikes' (KH Wikia), much like a bear. See where I'm going with this?

 

Anguis - Invi's animal is the Snake. Some snakes live in water and are agile as well as highly flexible. Aqua's name means 'Water' and, although she specialises in magic, she is a highly agile and flexible fighter.

 

Leopardos - Gula's animal is the Leopard. Leopards are agile and speedy, just like Ventus.

 

Unicornis - Ira's animal is the Unicorn. Okay unicorns aren't real, but if they were they would probably fight by lowering their head to point their horn directly at their enemy, ready to spear the enemy with it. In a similar way, Riku holds his keyblade up over his head, pointing it forwards at the enemy ready to fight. Also Riku has long (well it was long) silvery hair like a unicorn.

 

Vulpes - Lastly Ava's animal is the fox. Foxes are usually red and fight by jumping up high and then pouncing on their enemies. Kairi is a red-head and, although we haven't seen her fight much, she does jump over that balcony and land down below with impressive skill in the Castle That Never Was. 

 

Well that's it! Sorry if this has already been discussed elsewhere! Let me know what you think      

I mean, maybe, but you can find similar connections no matter how you match the animals to the humans.

I was actually going to make a similar topic to this, but I'm glad you eat me too this. Zoroastrian mythology also has an apparent link to the respective animals the Fortellers have as emblems.

I hope no one has already made a topic about this but I want to add another piece of possible evidence to the Rebirth Theory. I myself am still not sure if the Rebirth Theory is correct or not but here's something to think about, if you haven't thought about it already. We all know that each of the Foretellers represents an animal. But I just noticed today that each of those animals can be compared to the current Keyblade Heroes, particularly in their fighting style. Let's look at each one individually:

 

Ursus - Aced's animal is the Bear. A bear is a land animal, usually solitary and a powerful fighter. Terra's name means 'Earth' or 'Land'. He spends much of Birth by Sleep avoiding his friends and he is a powerful fighter who uses 'heavy, physical strikes' (KH Wikia), much like a bear. See where I'm going with this?

 

Anguis - Invi's animal is the Snake. Some snakes live in water and are agile as well as highly flexible. Aqua's name means 'Water' and, although she specialises in magic, she is a highly agile and flexible fighter.

 

Leopardos - Gula's animal is the Leopard. Leopards are agile and speedy, just like Ventus.

 

Unicornis - Ira's animal is the Unicorn. Okay unicorns aren't real, but if they were they would probably fight by lowering their head to point their horn directly at their enemy, ready to spear the enemy with it. In a similar way, Riku holds his keyblade up over his head, pointing it forwards at the enemy ready to fight. Also Riku has long (well it was long) silvery hair like a unicorn.

 

Vulpes - Lastly Ava's animal is the fox. Foxes are usually red and fight by jumping up high and then pouncing on their enemies. Kairi is a red-head and, although we haven't seen her fight much, she does jump over that balcony and land down below with impressive skill in the Castle That Never Was. 

 

Well that's it! Sorry if this has already been discussed elsewhere! Let me know what you think      

Doesn't add much to the theory, but they are interesting observations nonetheless.

 

Also, how DARE you say unicorns aren't real!? Shame on you!

 

At this point though, considering how different their voices are, I'm not so sure how convinced I am that they might be the same people anymore. I mean, there's always a chance that they all share some kind of physical resemblance to them, or that they have some similar features to the characters, but the fact that they seem to be portrayed by different voice actors kind of gives me more doubt. But then again, Xehanort has several different voice actors to portray all of his alter egos, so who knows, there might still be a chance that these characters at least bear some slight resemblance to the noted protagonists from the other games.