in islam all sinner human and jinn race who accept tawhid/absolute monotheism in the end will leaving hell and enter paradise.
The Prophet -- Allah bless and greet him -- said: "Whoever says there is no god but Allah enters Paradise even if he commits adultery and even if he steals (i.e. even if he commits great sins). {Sahih Hadith}
The Companions were talking about Malik ibn Dukhshum, and they wished that the Prophet -- Allah bless and greet him -- would curse him so that he should die or meet some calamity. The Prophet -- Allah bless and greet him -- said: "Does Malik ibn Dukhshum not testify to the fact that there is no god but Allah and that I am the Messenger of Allah?" They said: "Yes, he no doubt says this but it is not in his heart." The Prophet -- Allah bless and greet him -- replied: "No-one ever witnesses that there is no god but Allah and that I am Allah's Messenger and then enters the Fire nor is consumed by it." Anas said: "This hadith impressed me so much that I ordered my son to write it down and he did. (Sahih Hadith)
only people who heard,understand and reject Tawhid will stay forever in hellfire
Prophet say "On the Day of Resurrection, God will ask the one whose punishment in the Fire is lightest, ‘If you had whatsoever you wanted on earth, would you give it to save yourself?’ He will say, ‘Yes.’ God will say, ‘I wanted less than that from you when you were still in the loins of Adam, I asked you not to associate anything in worship with Me, but you insisted on associating others in worship with Me.’" (Sahih hadith)
As long as someone accept absolute monotheism and reject shirk, they will safe in afterlife
Insha Allah......If God Willing
Believe and accept in your heart God Is One, that is ultimate mission from islam faith