What does the eastern orthodox church believe in about afterlife...?

eternal punishment,
annihilation,
total final reconciliation?

As long as we are in this world, let us repent with our whole heart of the evil things which we have done in the flesh, so that we may be saved by the Lord while we still have time for repentance. For after we have departed from the world, we are no longer able there either to confess or to repent anymore. Second Clement, c. A.D. 100.

Most theologians follow the teachings of Gregory of Nyssa, who believed that all human beings would be saved. However, most Orthodox theologians stipulate that salvation does not occur through necessity, but because all human beings will choose to repent.

Orthodox theologians also maintain that there is no created hell. On the contrary, "hell" is simply another term for the uncreated glory of God which will be manifested on earth at the Apocalypse (see the position originally taken by the Orthodox at the Council of Florence). Those who suffer in hell are those who remain unrepentant, and are thus tormented by the presence of God. Hence the idea that all will repent.

But Orthodox theology differs from region to region. My view is firmly rooted in the Greek Orthodox theology espoused by Florovsky, Romanides, P. Christou, Hierotheos Vlachos, etc., as well as Gregory of Nyssa, Gregory Palamas, Maximos the Confessor, Peter of Damascus, etc.

Eternal punishment - only after judgment has been rendered on Judgment Day

Annihilation - see above.

Total Final Reconcilliaton - see above.