To me, this is a non-issue because I believe there's a place where we exist in non-physical form - now - where our identities are retained and recognized at a much more fundamental level, the level of what the Hindus call the Atman.
The identity that we assume here, in physical reality, is vastly secondary to the Atman. Our self definitions are primarily dependent on finite-material interactions, the sum of which is different for each of. This is Eckhardt Tolle's "ego", and it is a false sense of self. It isn't bad, necessarily, but it is something that we must work with, our "self" identity requires much individual adaptation. The fiction is that this is the Self. It is not. The Atman speaks to the essence of our true individual identity. Here's one such web reference.
"Atman, which is roughly comparable to the soul, is a major concept in Hinduism. Through "knowing Atman" (or knowing one's essential self), one can achieve liberation from reincarnation.
Atman is thought to be the essence of a being, and, in most Hindu schools, separate from the ego."