Space-time rather than space, in fact, and a singularity is really just an embarrassing way of stating that the mathematics implies that all the mass-energy of the collapsed object is compressed to a point with no dimensions -- we don't have any way of knowing if this is its actual fate. Some theorists opine that the energy density is so great that space-time itself must change phase and that black holes can actually spew out their contents as white holes -- perhaps in other space-time manifolds, perhaps elsewhere or elsewhen in this universe. Alternatively, black holes might actually be one or other of boson, electoweak,
quark, Q, preon or Planck stars, according to the theory du jour. See, for example,
https://arxiv.org/pdf/1401.6562v4.pdf.
There would be no mass-energy left to release and nothing to reflect light. In fact, a black hole effectively explodes as a burst of gamma rays when it finishes
evaporating (although black holes containing Planck stars might behave differently). No black holes of mass greater than approximately that of the Moon can currently evaporate by Hawking radiation because the cosmic microwave background (CMB) radiation is contributing mass-energy in the form of photons faster than they can shed mass-energy by radiation. They can only start to evaporate when the Universe has expanded sufficiently for the CMB effective temperature to have fallen sufficiently to lower the average mass-energy of the impinging photons.
