>>107192
Johnny Joestar isn't born a cripple, just a very talented jockey, but he's also an asshole and at some point it comes back to bite him when he fucks over a poor theater goer and he just shoots him and leaves him handicapped. His legs are fully restored by the end of part 7 thanks to some tomboy nun gf sent by the Vatican to retrieve the Holy Corpse of Jesus Christ (Joseph Smith was right in this universe).
>>107194
Unless Araki deliberately draws it, it's practically fan wank. Strictly going by what's shown, the only people confirmed to be the same even in the new universe are Emporio and the guards/prisoners who managed to survive the first skip. MAYBE Rohan Kishibe if you want to stretch the people at least mentioned in part 6.
Also, I was always under the impression that 7 was supposed to be the explanation for what happened in the world where Pucci didn't exist? Where did it say that it's a different one?
>>107186
>But weren't the regular Joestars reborn after the final reset of the universe?
It's all very fucking confusing because technically they're now American and/or Japanese. They still exist but some have no relation to any Bizarre Adventure and one of them fucked Yoshikage Kira (who is still a faggot but like a nicer kind of faggot).
>And what the fuck is Jojolion about?
Originally it was supposed to be a "Murder Mystery" spin on Jojo but it gradually just became another "bad guy of the week".
Basically Josuke is not born to the Joestar family in this world, rather he's a neglected child who is friends with Yoshikage Kira (who is a navy doctor and kind of still an asshole) but both of them have a Stand (I don't recall the details but supposedly a real life Japanese earthquake moved the Devil's Palm* from America to Japan and that's how they got the powers). *Devil's Palm is some Native American holy site that was created when Jesus, who traveled from Judea eastward until he found the Americas, died there and his holy powers went on to grant Stands to those unfortunate souls who got stranded into it as an act of salvation.
The two get in on a conspiracy by the Stone People (gay stand using descendants of the Pillar Men, which in this world were never killed since, you know, no Joestars) and Joubin Higashikata of Higashikata Fruits (again some extra fluff but Old Fart Higashikata got second in the Steel Ball Run race and used his fortune to create a fruits Zaibatsu) involving a recently discovered fruit called the Locacaca, which exists in Papua New Guinea and it has the uncanny property of allowing something called "Equivalent Exchange" (basically it heals you but in return it fucks up some other part of you by turning it into stone, so if you are blind you can eat it and it will make your arms fall off but now you can fully see or shit like that). Kira is killed during the confrontation but Josuke (who is actually called Josefumi Kujo, like the guy I previously mentioned), manages to hang onto a fruit and unbeknownst to him Jesus Christ's corpse (long story but it was stolen by Johnny and buried in the Higashikata's fruit manor) allows the Equivalent Exchange to happen in a way that actually does a fucking body parts exchange. Kira is fully healed but parts of his brains is replaced by the working parts of Josefumi (also four balls haha).
The entire manga is about this new person (who gets called Josuke by the Higashikatas) trying to 1) come to terms with who the fuck he's supposed to be 2) heal Kira's mom who also got Equivalent Exchange'd 3) thwart the Stone People's mafia 4) get into Yasuho Hirose's juicy coochie 5) confront the Higashikatas on their own sordid past.
The part is practically ended abruptly with half of the family dead or disfigured, Josuke still only partially avenged, the Stone People dead and a lot of it just plainly unresolved. There's an extra chapter where
>>107210 is a guard rail monster created in pre-war Japan where Josefumi Joestar has to save Lucy Steel, and then the end.
https://jojo.fandom.com/wiki/Joestar_Family#Steel_Ball_Run_Timeline
Here if this sounds confusing as fuck, and it's because it is.