I would never really use concepts here any any kind of way to gauge characters or where the story will go because well there concepts.
they are ideas initial that are either thrown art because the creator doesn't like it after the initial thought/drawing, thinks of something better/they enjoy more, company throws it away, someone reigns the person in, etc.
Like lets look at some examples.
Street Fighter 4 introduced lots of new characters in in some ways is a soft reboot after third strike, one of the intail concepts was King Cobra:
A black man with his own style of Kung Fu mixed with break-dancing in his own unique style to be cool and serious with his back having Kanji for "the Weak are Meat", during development was discarded in favor of Rufus:
A fat white man joke charterer who doesn't really have a fighting style who does karate.
Juri who I think still used Taekwondo but originally was supposed to have tragic love story and she was caught up with the wrong people:
But Ono threw that all out and he said just have a bad girl who continues the Capcom fighter tradition of having links to JoJo characters:
Square Enix Final Fantasy has alot of this, but I will just focus on Final Fantasy 7:
Sephiroth and Aeries were originally brother and sister, that was then changed to being former lovers, before any connection between them being dropped.
Aeries mother was originally the DNA mixed into the Soliders and such not Jenova cells, Aeries herself never was in a relationship and was naive with men which is the opposite of what it is in the game considering Zack and her relationship with Cloud (Aeris was a different character besides for the idea of a party member that would permanently die)
Cloud himself originally wasn't designed with his signature spikey blond hair to save polygons, but the change was made to make Cloud stand out more.
The scene of Cloud and Tifa before the final battle with Sephiroth was much different, originally the two made love before the final battle in the Chocobo Den but was changed to the two talking during the night to each other.
One of the originally story concepts that would have been FF7 was considered to dark for Final Fantasy but the heads at Square still liked it, so it was chnaged stuff to start the Xeno series.
Another story concept had Cloud being a detective in actual New York City.
Going back to Capcom side:
Street Fighter 5 was originally concepted and developed to be a three d fighter like Tekken:
But the developers thought this wouldn't fit the series.
Resident Evil 4 has 4 prototypes/concepts:
1. Wasen't like Resident Evil at all but Mikami like Kamiya work and told him to keep working on it and pitch it to Capcom as a new IP which became, DMC: which besides for the castle setting and a character named Vergil was changed completely.
2. Was the castle demo you can find online, if I remember right it was rejected and told to do more since just a creepy castle wasen't enough.
3. Was the Castle again but this time, who at this time in concept 2 the protagonist was Leon would suffer hallucinations that would cause rooms to chnage radically at whims, but was deemed impossible on current hardwares because they would always have to have two rooms loaded and the ability to switch instantly.
4. This concept was apparently so bad that Mikami said fuck it, canned it and decided he would make Resident Evil 4 himself.
And lets not even go into Breath of the Wild original Rock music concept:
Heading to like the Big Anime franchise:
Gundam original anime is very different compared to the novel that finishes the series (this is before it was a massive hit and Tomino knew there be more), in that Amuro has an open relationship with Sayla that results in her getting pregnant but Amuro dies mid way through the novel, Char becomes good and works with White Base but th final battle is them defeating Char.
That was the original ending.
Back to the Manga verse:
Beginning with Bleach one of the biggest changes and drives to the series was in the character Orihime, originally she was to die in the first chapter and be Ichigo major drive through the series would be to save her because she had now become a ghost instead of his original on of protecting his family & friends.
Besides for also having Guns and Scythes as major weapons of the series instead of swords.
Urihara himself was supposed to be the main villain of the series and actually killed Aizen, it was a dicession during the Soul Society to have Aizen be revealed to be alive and he was give the role of the villain which was removed from Urahara.
Naruto:
Sasuke and Sakura didn't exist in the original concept in any facet, they were mandates/asked by the editor, the world was more mystical with animals being it it.
Like the Third Hokage was originally a fox, the forth hokage himself if I remember right was originally a toad/frog and Iruka was another character entirely.
Hinata wasn't a ninja at all who did fight, she was just a village girl who loved Naruto that encouraged him.
There lots of stuff that changed during Star Wars so I will cover some basics:
Luke was originally a 60 year old man with robot head whos journey after the original series was to find his sister and train her in the ways of the Jedi (yes Leia was originally never Luke's sister), Han Solo was originally an Alien, C3PO was a used Car Salesman like instead of a dignified translator.
Even One Piece concepts are different then what we got:
https://vignette.wikia.nocookie.net/onepiece/images/c/ca/Nami_Battle-Axe.png/revision/latest?cb=20130503014120
This was Nami original concept, Axe, scar all over robotic parts and shit and a fighter.
Far way from the black mage girl who doesn't fight with her strength but with her wits besides the look.
Hell I think only like two characters have used an Ax in this series which are Morgan and Sentomaru.
Zoro himself was to be Buggy first mate who was recruit by Luffy originally.
Remember here is Kuma original design which really is nothing like he is now:
He even has Shiki wheel in the head.
Franky design looks nothing like his design now besides maybe his hair color.
Don't look to deep at concepts because its just faulty logic.