I apologize for misunderstanding. I have the same problem with my brothers: One belongs to an offshoot of the Armstrong cult, the other agnostic who can read the bible and not get the impression its from God, supernatural. Totally opposite of me, when I first started reading the power of God's word gripped me, I read the bible cover to cover...couldn't stop.
I trust in Yahweh God, His plan. I truly believe both will be saved. Both go to hades upon death (not believing in Christ revealed in scripture), but both will repent and believe when the gospel is preached to them in their "heightened intellectual state where their free will isn't clouded by delusion of any sort."
So if your family isn't wicked, its 100% certain they will jump at the opportunity that is exclusively in Jesus, and believe in Him as LORD. Then they too, after this judgment, will eagerly wait for Christ's second coming to save them from Hades, raise them up from the dead with the Church:
26 or else he must have suffered often since the foundation of the world. But now once at the end of the ages, he has been revealed to put away sin by the sacrifice of himself.
27 Inasmuch as it is appointed for men to die once, and after this, judgment,
28 so Christ also, having been offered once to bear the sins of many, will appear a second time, without sin, to those who are eagerly waiting for him for salvation. (Heb. 9:26-28 RPTE)
For to this end the Good News was preached even to the dead, that they might be judged indeed as men in the flesh, but live as to God in the spirit. (1 Pet. 4:6 RPTE)
Although in Hades, when they repent and "live according to God" (the gospel of Christ) they are enveloped by the Holy Spirit, "quickened" as though given "water", refreshed and in a state of relaxation just as the redeemed are in Abraham's bosom. But they can't leave Hades until the rapture/resurrection of the church at Christ's coming:
13 But we do not want you to be ignorant, brothers, concerning those who have fallen asleep, so that you do not grieve like the rest, who have no hope.
14 For if we believe that Jesus died and rose again, even so God will bring with him those who have fallen asleep in Jesus.
15 For this we tell you by the word of the Lord, that we who are alive, who are left to the coming of the Lord, will in no way precede those who have fallen asleep.
16 For the Lord himself will descend from heaven with a shout, with the voice of the archangel, and with God's trumpet. The dead in Christ will rise first,
17 then we who are alive, who are left, will be caught up together with them in the clouds, to meet the Lord in the air. So we will be with the Lord forever.
18 Therefore comfort one another with these words. (1 Thess. 4:13-5:1 RPTE)
So my advice to you is "trust God", if they aren't wicked they will repent and believe and you will see them in God's Kingdom. Meanwhile I do pray God open their eyes before they die so they can be gathered to Abraham and Lazarus in Paradise, and avoid Hades entirely.
One last apologetic point. We both know God is "all knowing", Infinite in intellectual capacity. Why or HOW could such a infinitely smart Person leave the salvation of the human race, to the Christian church? To incompetent bumbling fools? He wouldn't. His Plan is perfect, everyone righteous will be saved, everyone wicked will be lost, and those guilty of eternal sins will suffer eternally. Perfect.
In fact, when Paul got a glimpse of God's mercy with those Israelites who died "enemies of the gospel", he broke out in praise:
26 and so all Israel will be saved. Even as it is written,"There will come out of Zion the Deliverer,and he will turn away ungodliness from Jacob.
27 This is my covenant to them,when I will take away their sins."
28 Concerning the Good News, they are enemies for your sake. But concerning the election, they are beloved for the fathers' sake.
29 For the gifts and the calling of God are irrevocable.
30 For as you in time past were disobedient to God, but now have obtained mercy by their disobedience,
31 even so these also have now been disobedient, that by the mercy shown to you they may also obtain mercy.
32 For God has shut up all to disobedience, that he might have mercy on all.
33 Oh the depth of the riches both of the wisdom and the knowledge of God! How unsearchable are his judgments, and his ways past tracing out!
34 "For who has known the mind of the Lord?Or who has been his counselor?"
35 "Or who has first given to him,and it will be repaid to him again?"
36 For of him, and through him, and to him, are all things. To him be the glory for ever! Amen. (Rom. 11:26-36 RPTE)