If there isn't a new system, then what does that mean?
Well, God's Kingdom on the earth was a future reality to Jesus, so when he listed it as one of the priorities for us to pray for (Lord's Prayer) he meant it to be real to us also. Humanity is never going to fix itself, plus, God never intended for us to live and govern ourselves totaly apart from Him. So, the New System is a coming reality and something for us to look forward too!