You are greatly mistaken:
Joh_18:36 Jesus answered, My kingdom is not of this world: if my kingdom were of this world, then would my servants fight, that I should not be delivered to the Jews: but now is my kingdom not from hence.
It is to be future, when the "first dominion" is brought back, in the New Heavens and New Earth, the "world to come":
Mic_4:8 And thou, O tower of the flock, the strong hold of the daughter of Zion, unto thee shall it come, even the first dominion; the kingdom shall come to the daughter of Jerusalem.
Mat_12:32 And whosoever speaketh a word against the Son of man, it shall be forgiven him: but whosoever speaketh against the Holy Ghost, it shall not be forgiven him, neither in this world, neither in the world to come.
Mar_10:30 But he shall receive an hundredfold now in this time, houses, and brethren, and sisters, and mothers, and children, and lands, with persecutions; and in the world to come eternal life.
Luk_18:30 Who shall not receive manifold more in this present time, and in the world to come life everlasting.
1Co_3:22 Whether Paul, or Apollos, or Cephas, or the world, or life, or death, or things present, or things to come; all are yours;
Eph_1:21 Far above all principality, and power, and might, and dominion, and every name that is named, not only in this world, but also in that which is to come:
Heb_2:5 For unto the angels hath he not put in subjection the world to come, whereof we speak.
That which is preached now and experienced now, is only the "taste" (earnest, downpayment, surety) of that which is to come:
Heb_6:5 And have tasted the good word of God, and the powers of the world to come,
Eph_1:14 Which is the earnest of our inheritance until the redemption of the purchased possession, unto the praise of his glory.
The Bible is extremely clear on this point:
Isa_65:17 For, behold, I create new heavens and a new earth: and the former shall not be remembered, nor come into mind.
Isa_66:22 For as the new heavens and the new earth, which I will make, shall remain before me, saith the LORD, so shall your seed and your name remain.
2Pe_3:13 Nevertheless we, according to his promise, look for new heavens and a new earth, wherein dwelleth righteousness.