Indeed!
But I do not believe heaven to be static.
I strongly suspect a continual interaction with other souls.
Is that not what we have now? Heaven would suck if there was only one soul? What good is bliss if the bliss is not shared?
Why was man created and made to exist outside of Heaven, I mean if God wanted to share Heaven with man? Why not start out in Heaven so we can frolic together among the clouds or whatever souls do together for fun in Heaven?
Whatever I experience I can't really share. All of what I experience is internal. I could be in a room alone watching a movie, a really good movie. The drama, the action, I share the experience with the characters in the movie. Who am I really sharing that experience with? No one is really there except me.
When I dream, I dream of other people doing other things. You go to your idea of Heaven, you perceive other souls doing other things. It doesn't actually matter if anyone else is there or not. You accept the truth of your perception.
If there were one soul in Heaven or a billion, you could only know the truth of your own existence.