His People He foreknew were appointed heirs in Him and with Him; and we were loved as personally considered in Him. He was the comprehending Head in whom were embraced all the members.
Christ as the Head of Election, was appointed Head heir of all things Heb 1:2
2 Hath in these last days spoken unto us by his Son, whom he hath appointed heir of all things, by whom also he made the worlds;
By Eternal Union with Christ, the foreknown ones were Co Heirs with Christ having been Chosen in Him Rom 8:17
And if children, then heirs; heirs of God, and joint-heirs[Union] with Christ; if so be that we suffer with him, that we may be also glorified together.
Remember these[joint-heirs with Christ] are the same ones Paul says a few verses later Rom 8:28-29
28 And we know that all things work together for good to them that love God, to them who are the called according to his purpose.
29 For whom he did foreknow, he also did predestinate to be conformed to the image of his Son, that he might be the firstborn among many brethren.
So His People He foreknew Rom 11:2 were Joint Heirs with Christ Rom 8:17 and this before the foundation, For Christ made the Worlds, and He was their Head then Col 1:17-18
17 And he is before all things, and by him all things consist.
18 And he is the head of the body, the church: who is the beginning, the firstborn from the dead; that in all things he might have the preeminence.
Prov 8:22
22 The Lord possessed me in the beginning of his way, before his works of old.