Sergei Bulgakov (1871-1944) was a Russian Orthodox priest and theologian.  The son of a priest, he went through an atheist phase during his university days--his degree was in economics--but was later reconciled to the Church.  Shortly after his ordination he was expelled from Russia by the Bolshevik regime.  He eventually made his way to Paris, where there was a thriving White Russian exile community, and helped establish the Institute St Serge, an Orthodox theological school.  His theological writings are often complex and sometimes controversial.  He survived an accusation of heresy over his concept of "sophiology".  Bulgakov's intriguing ideas on eschatology are more accessible and can be found in his book The Bride of the Lamb.  They are discussed in some detail on the excellent Eclectic Orthodoxy site.  Bulgakov is quite clear that at the end of the age not only will people be resurrected and deified, but that the physical universe will in some sense be divinized as well (though this should not be taken to imply pantheism).  The quote below comes from pp 404-405 of the book. 

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...prior to the parousia this sanctification and deification remain incomplete and preliminary, for the action of the Holy spirit ends with the parousia; the whole power of the Pentecost is revealed to the world.  The world is sanctified, deified, and glorified by the power of the Holy Spirit, and the parousia arrives by virtue of this action of the Pentecost.  It is impossible to say what comes before and what after, for this is a single act that occurs both in heaven and on earth, signifying the end of God's kenosis and the beginning of the world's deification.  The Father sends the Son into the world and, secondarily as it were, He sends with Him the Holy Spirit for the joint accomplishment of the parousia and the transfiguration of the world.  The Son wills again to carry out the will of the Father, this time by a conclusive and universal act, in order to accomplish the salvation of the world and to "unite the things of earth with those of heaven", as the liturgical hymn says.