Do Christians believe in after death reincarnation or in heaven?

True Christians believe what the scriptures teach about death and what happens afterward. The scriptures point out that when (the large majority of) people die, they simply return "to dust" a.k.a. breakdown to the bare elements they were created from and cease to exist. The same thing happens with animals. (Ecclesiastes 3:19-20) This has been happening since Adam sinned in the Garden of Eden. (Genesis 3:19) During this breakdown process, the person knows/feels nothing; completely unconscious. (Ecclesiastes 9:5, 6 & 10) Only a small group of people are chosen by Jehovah God and Jesus to go to Heaven: 144,000. (Revelation 14:1-4) So what about the other righteous people that have died through the centuries? Or those that died before gaining any knowledge of Jehovah?

There will be a resurrection of both righteous and 'unrighteous' (a.k.a. those that died before knowing who Jehovah was or His principles) people (John 5:28-29; Acts 24:15), who will then be able to live forever on Earth, one devoid of evil people. (Psalms 37:10, 11, 28 & 29) Those that died with no knowledge of Jehovah will be given a chance to prove themselves faithful, and if they do so they'll be able to live eternally alongside the rest of the righteous.

(New World Translation of the Holy Scriptures)