The fate of those not made immortal is everlasting death.
Daniel 12:2-3
And many of them that sleep in the dust of the earth shall awake, some to everlasting life, and some to shame and everlasting contempt. And they that be wise shall shine as the brightness of the firmament; and they that turn many to righteousness as the stars for ever and ever.
Isaiah 26:13-14
O LORD our God, other lords beside thee have had dominion over us: but by thee only will we make mention of thy name. They are dead, they shall not live; they are deceased, they shall not rise: therefore hast thou visited and destroyed them, and made all their memory to perish.