The majority of the second century fathers defined the thousand years as a literal millennial reign of the sains on the earth or in a rebuilt Jerusalem. But there are ndications that this may not have been niversally held. We read Justin Marytyr in his dialogue with Tryho:
"But I and others, who are right-minded Christians on all points, are assured that there will be a resurrection of the dead, and a thousand years in Jerusalem, which will then be built, adorned, and enlarged, the prophets Ezekiel and Isaiah and others declare… [John allegedly prophesies] our Christ would dwell a thousand years in Jerusalem; and that thereafter the general, and, in short, the eternal resurrection and judgment of all men would likewise take place. " (Dialogue with Trypho 80-81)
Yet, speaking of this pre-millennial doctrine:
“I admitted to you formerly, that I and many others are of this opinion, and [believe] that such will take place, as you assuredly are aware; but, on the other hand, I signified to you that many who belong to the pure and pious faith, and are true Christians, think otherwise.” (Ibid. 80)
Might there have been competing interpretations of Revelation 20 in Second Century? It seems so.