I am allowed to say the Jєω who dies a Jєω rejecting Christ has condemned himself to hell. Are you saying you can’t make this type of statement?
We will not know for sure if someone has sincerely repented and if the Theotokos has interceded to Christ God that his soul may be saved through someone's heartfelt prayers. In the afterlife, no doubt, we will rejoice with all the saints that someone was able to repent through our simple prayers as there will be much rejoicing in Heaven over one sinner who repents.
Where there is life, there is hope, but the soul who has hardened his heart and has committed the sin of blasphemy against the Holy Spirit will not be saved neither in this life nor in the afterlife for there is no grace of repentance given to such a soul.
I met a soul who asked for my prayers, but he admitted that I would be wasting my time to pray for him. He said that he was having nightmares every night driving him to despair not only because he had denied Christ, but also because he might have committed the sin against the Holy Spirit. I thought he might be scrupulous at first, but he told me that when he tried to go to a priest for confession, he could not even enter the church. It was like a hand prevented him from doing so. He was driven to despair and thoughts of ѕυιcιdє to end the daily nightmares of the screams he heard in hell. I lost contact with him.
Many Jєωs during the time of Christ and even in our times have hardened their hearts and have committed the sin of blasphemy against the Holy Spirit by saying that Christ is the devil or that He is the son of a devil, and/or that Christ works miracles through the devil. These will not be saved.