Zeus and Shu would remain the Queens of Alial for quite some time. They'd be loved by all and considered some of the best rulers of Alial for sometime. There reign would end at there deaths leading into an election for a new king or queen. As for Osiris he remained for there entire life as a General of Alial's army.
Once Zeus and Shu died however, Osiris would leave wandering the world since the Soul blade wasn't broken he would remain 28 forever. It is unknown to the general public what happened to Osiris though rumors throughout 200 years of a man that looks like Osiris helping others out. The man apparently wore a cape and had some facial hair.
However the rumors stopped after 200 years his whereabouts would remain Unknown to the General public and Whether he would inevitably die, would as well. Though if it's just between me and you I'll say he lived for a lot longer than known.
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And I can assure you he was happy despite his predicament. Though it weighed on him sometimes. As for the Dark and Light Occults they were never seen again though new Occults appeared in their place as stories of dark gods and some for individuals wandered the world.
As for the Gods themselves well
The goddess of light and God of darkness were sent to Cataclysm as Elckromnos was destroyed all together and wiped from the plane of existence. The gods were now able to once again interact with mortals and the world was able to enter a new age free from the light and Dark Occults.
The End