We have this concept that a spirits form is a wispy see-through existence.
One could imagine something quite different from that.
Just a thought.
I wonder could it possibly only to be visible to a form of it's own kind and that it does exist in a another plain, right now.
We perhaps no need to wait for a second coming, I don't see the point.
Jesus (God) has been in our life to beckon us and we can follow Him if we choose to or remain dead on this Earth.
Our image is perhaps an image that God knew that we would only accept (as with Jesus) but in fact it is a totally different form from us, even a different consistency that we can touch when we go to God after our physical life we live here ends.