Board Thread:Manga Discussion/@comment-3078216-20140216111500/@comment-28789396-20160619074753

Over 2 years later I still agree it's entirely possible he would have been overseas. Joseph fathered Josuke out of wedlock. Also I don't think Funny Valentine's stand powers are intense as Made in Heaven which reset the entire universe.

There are people that believe for every action there's multiple outcomes. Funny Valentine could jump in between facets of what was currently happening, but up until that point with Irene is something set in a strand of time which should be the definite future of the current Jojo universe.

Jojolion's story starts about a year before the events of Stone Ocean concluded so it's entirely possible the arc could bring Irene into it as she goes seeking her father's permission for marriage to Annakiss. Maybe she hasn't seen him in awhile and will have quite the surprise meeting Josuke 8 instead.