Romans 8 -
There is therefore now no condemnation to them which are in Christ Jesus, who walk not after the flesh, but after the Spirit.
2 For the law of the Spirit of life in Christ Jesus hath made me free from the law of sin and death.
3 For what the law could not do, in that it was weak through the flesh, God sending his own Son in the likeness of sinful flesh, and for sin, condemned sin in the flesh:
4 That the righteousness of the law might be fulfilled in us, who walk not after the flesh, but after the Spirit.
5 For they that are after the flesh do mind the things of the flesh; but they that are after the Spirit the things of the Spirit.
6 For to be carnally minded is death; but to be spiritually minded is life and peace.
7 Because the carnal mind is enmity against God: for it is not subject to the law of God, neither indeed can be.
8 So then they that are in the flesh cannot please God.
9 But ye are not in the flesh, but in the Spirit, if so be that the Spirit of God dwell in you. Now if any man have not the Spirit of Christ, he is none of his.
The judgement in 1 Peter 4: 17 is whether or not a person is born again and walking after the Spirit. It probably also includes the judgment of unbelievers on Jerusalem in 70 AD that Jesus famously predicted: "not a stone will be left on a stone" of the temple.
When the temple was burned the gold melted and the Roman soldiers pried the stones apart to get it in a rather dramatic fulfillment of his prophecy.
What is not meant (to the shame of Watchtower) is that Christians in the Church Age are under some sort of judgment. To the contrary, Christians are under Grace, not Law during the Church Age, if indeed they are born again. Professing Christians should check to make sure.
There is therefore now no condemnation to them which are in Christ Jesus - Romans 8: 1