Of course, we don't know that yet. Any more than before we were born, we had no idea of the world we live in now. But a good comparison is possible. During His life Jesus put children in the spotlights and said we can only enter the Kingdom 'as children'. It is not far-fetched to think that with this remark Jesus typified life in God's new world. Think of a child who is completely absorbed in his play and 'forgets the time'. There is no fear of the future, nothing to break the game, no shadow of sin, threat, or death. When father or mother put an end to in the evening, because it is bedtime, the timeless play is broken. “Ah, already?” the child complains, having been busy for hours. Living like a child typifies our future. Time simply doesn't matter anymore. God is setting up His tent among the people to share the future with them forever!
Making music takes a lot of practice. If you've tried it yourself, you can probably relate. It only takes one false note in a chord and the whole harmony is disrupted. But you know, it's the other way around too. Take out that false note and suddenly the whole thing sounds beautiful again. So will it be with our world. Now life often still sounds deafeningly false. But soon God will take out the false notes of sin and death. The great commandment of love (Love God with all your heart, with all your soul, and with all your mind, and your neighbor as yourself) will become self-evident to everyone. For:
“(…) or the earth will be filled with the knowledge of the glory of the LORD, as the waters cover the sea” (Habakkuk 2:14, and also Isaiah 11).
Just imagine how that would sound!