what all these bible readers miss is, that Jesus was already in his kingdom in the first century. Colossians 1:13, an colossal oversight.
Then I the question becomes, does Jesus rule for 1000 years or does he rule for eternity? According to Watchtower, he rules for 1000 years and then hands the kingdom back over to Jehovah. According to just about all other Christians, Jesus simply is God and King.
Personally I don't take much of the bible literally, so the 1000 years could be a metaphor that does not translate in modern language.