The Iso-Diadact

So the Ur-Diadact is the one in Halo 4 my question is what happened to the Iso-Didact, I’ve read the Forunner trilogy, but I just cant find out what happened to him.

I’m just read the Cryptum, but I looked after - on Halo Wikia - what happend with Bornstellar, and Chakas.
Theoretically he (Iso-Didact) survived the activation of the Halo Array, and he saw the repopulation of the human kind. And on Onyx UNSC find him in somekind of form.

This happens

Well I think its best to listen than someone to just say.

He survives, along with humans such as Riser and Vinerva, and with Chant to Green and maybe a few select other Forerunners. They left known space as to not intervene anymore.

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> He survives, along with humans such as Riser and Vinerva, and with Chant to Green and maybe a few select other Forerunners. They left known space as to not intervene anymore.

All humans that made a home on installation 00 including riser, returned to earth during the reseeding.