If Christianity is correct, there is at least a moderate probability that there are embodied intelligent persons other than humans. If so, will some of them be in the heavenly Jerusalem, too, available for us to interact with? I think that the value of unity between creatures gives a plausible affirmative argument. Over a finite amount of time, it might make sense that different intelligent species be sequestered, as inter-species communication has many difficulties. But given an infinite amount of time, it seems plausible that such contact would be appropriate. The heavenly choir, thus, may well include an intelligent gas cloud (not literally a gas cloud: a being of body and soul, whose body is composed of a gas cloud) slowly changing colors in a meaningful way, and chatting with St Thomas about divine simplicity.
Of course all such possibilities for wonder pale beside the simple wonder of union with God.