Battle Tendency took place between late 1937 to early 1938
- That would explained why Joseph is one year young then his canon counterpart, well at less in-Universe.
Joseph will eventually has to fight DIO
- I'm mean come on! The Joestar Family and the Brando Family are pretty much destined to do battle, and Joseph in some way or form has to avenge Remnant's version Jonathan.
- pretty much confirm as for Chapter 27.
Josuke will be the son of both Joseph and Yang
- Son acting smart like his Dad Check!
- Son has a literal Hair-Trigger Temper, cheerful and jokey personality. Like his Mom Check!
- Both Mom and Dad are Hot-Head's Check!
- Mom has some form of a Crush on Dad Check!
- Waiting for this to be canon "Pending......"