so is this still the new timeline or the old one? because Rohan is really messing with my perception of when this takes place
that's the thing.
This is clearly the new timeline. We saw a brief glimpse of the family tree after all.
But Kishibe Rohan is
too close to the original.
While some people may look alike, most of them were people on the Steel Ball Run that look like people that should not be there yet. As far as most can be concerned, they are just references. And Johnny Joestar? While he is clearly Johnathan Joestar, they both look and act completelly differently.
In Jojolion, while we can see how there is some of the original timeline people in the new ones, there is only one that is close enough in both name and appearence to be mistaken for the other:
Holly.
The think is, Holly Kujo is a housewife so pacifistic that when her Stand is forcefully awakened by DIO she cannot control it and is bedridden.
Holly Kira was an accomplished doctor that seemed to have some precognition skils, coupled with (caused by? that caused?) some some apparently unexplainable brain damage.
As similar as they may be, they are also very different.
Yet here we have Kishibe Rohan. Who has the same name and looks of the original timeline's, is also an accomplished manga author, and is apparently just as introvert.
As far as we know, he
looks and acts just as the original timeline one... but we don't know much either.