"But as it is written; eye has not seen, nor ear heard, nor have entered into the heart of man the things which God has prepared for those who love Him." 1Cor. 2:9
Heaven is the place we who are saved all hope to go someday. We trust that those who we knew and who have died are already there.
" We are confident, yes, well pleased rather to be absent from the body and to be present with the Lord." 2Cor.5:8
The Holy Spirit clearly says that there is a place to be that is different and that is better than where we live now.
To some people, Heaven will be a familiar place. It will be a stylized version of the best we can think of now. They think that Heaven will be filled with familiar faces and loved ones who we will be reunited with. They think that Heaven will be what we love here without the pain and sickness and decay. To them, Heaven would be like Adam and Eve going back to Eden without the serpent to deceive them.
The Bible gives us a different idea about Heaven. It is too involved for me to go into it all in this space. But let it suffice to say that Heaven will be like living in a dreamland that you have never seen or been before. The apostle Paul, after he had seen it, was forbidden to describe it to us.
"how he was caught up into Paradise and heard inexpressible words, which it is not lawful for a man to utter." 2Cor.12:4
I think that people will be recognizable just as Jesus was recognized by his disciples after he was risen from the dead. But we will be like the angels; spiritual beings unfettered by natural laws.
God always saves the best for last. Jesus is preparing a place for us with him. The face of God that Moses could not see without dying will be visible in Heaven. The new Jerusalem might be the command and control center from which God in Christ administers the universe. It will be amazing and unlike anything we can even imagine.