Let me say I don't speak for all full-preterist, I speak just for my own beliefs. However,I think most full-prets would agree with most of what I say.
Not sure.
Joh 12:31 Now is the judgment of this world:
now shall the prince of this world be cast out.
Heb 2:14 Forasmuch then as the children are partakers of flesh and blood, he also himself likewise took part of the same; that through death he might destroy him that had the power of death, that is, the devil;
2. Is Jesus coming again?
No. He fulfilled His promise just when He said He would.
I would agree with the futurist view that Jesus only taught one future coming. I believe the comings found in the NT such as Matt 26:64, Matt 16:27-28, James 5:8, Matt 24:30, Rev 1:7, Acts 1:11 all refer to the same event.
The only possible exception I see is Acts 1:11 but even that uses the same cloud images as the others.
3. Are we living in the new heaven and new earth?
Yes, but you don’t have to be a full-preterist to believe this:
C.H. Spurgeon (1865)
"Did you ever regret the absence of the burnt-offering, or the red heifer, of any one of the sacrifices and rites of the Jews? Did you ever pine for the feast of tabernacle, or the dedication? No, because, though these were like the old heavens and earth to the Jewish believers, they have passed away, and we now live under the new heavens and a new earth, so far as the dispensation of divine teaching is concerned. The substance is come, and the shadow has gone: and we do not remember it." (Metropolitan Tabernacle Pulpit, vol. xxxvii, p. 354).
John Brown (1853)
"
'Heaven and earth passing, ' understood literally, is the dissolution of the present system of the universe, and the period when that is to take place, is called the 'end of the world.' But a person at all familiar with the phraseology of the Old Testament Scriptures, knows that the dissolution of the Mosaic economy, and the establishment of the Christian, is often spoken of as the removing of the old earth and heavens, and the creation of a new earth and new heavens" (vol. 1, p. 170)
4. If we are living in the new heaven and new earth will this earth last forever?
Not sure. I would tend to believe yes.
Eph 3:21 Unto him be glory in the church by Christ Jesus throughout all ages, world without end. Amen.
Ecc 1:4 One generation passeth away, and another generation cometh: but the earth abideth for ever.
Psa 104:5 Who laid the foundations of the earth, that it should not be removed for ever.
Psa 78:69 And he built his sanctuary like high palaces, like the earth which he hath established for ever.
5. Do you believe things are getting better? If we live in the new heaven and earth what about the sin all around us?
Yes, I believe things are getting better. Depending of course on what you mean by better. Is there any other time period you would rather live in than today? Middle Ages? 1st century? 1950’s, unless you are of color?
How one can say things are getting worse, as we sit in our air conditioned homes freely discussing scripture with people 1000’s of miles away on this thing called a computer, while at the same time reviewing our 401k that will allow us to retire at age 60, is a little confusing.
Does scripture say there will be no more sin in the New Heavens and New Earth?
Who are these people outside the New Jerusalem:
Rev 22:14 Blessed are they that do his commandments, that they may have right to the tree of life, and may enter in through the gates into the city.
Rev 22:15 For without are dogs, and sorcerers, and whoremongers, and murderers, and idolaters, and whosoever loveth and maketh a lie.
They are invited to enter into the city:
Rev 22:17 And the Spirit and the bride say, Come. And let him that heareth say, Come. And let him that is athirst come. And whosoever will, let him take the water of life freely.
The city(New Jerusalem) is the Church:
Rev 21:9 And there came unto me one of the seven angels which had the seven vials full of the seven last plagues, and talked with me, saying, Come hither,
I will shew thee the bride, the Lamb's wife. Rev 21:10 And he carried me away in the spirit to a great and high mountain,
and shewed me that great city, the holy Jerusalem , descending out of heaven from God,
The New Jerusalem(Church)is found in the New Heavens and New Earth(New Covenant).