1 Corinthians 15:24

Then cometh the end, when he shall have delivered up the kingdom to God, even the Father; when he shall have put down all rule and all authority and power (KJV)

Then: This is the first part of a description of Christ's victory. The Corinthians knew what they were hearing. They would be part of the kingdom delivered to God the Father. All opposing rules, authorities and powers will have been conquered, defeated, annihilated. If they didn't shout, "Hurray", they at least had a nice warm feeling of joy inside of them. Who wouldn't?

Now: We each have our own visual images of what that will look like as a actual event. Reading Revelation makes it even more pituresque. Standing with fellow believers, everyone since the beginning of God's plan, can't even be slightly compared to our vision of 2 million plus people on the mall in Washington, DC. Consider individual joy geometrically multiplied by the presence of everyone else. We are thankful for glimpses of heaven and keep wondering about the rest.