I’m wondering if this could be tied to the hawking paper where the particles wavelength heads toward infinity as it enters the event horizon of a black hole. Would seem to me that as the wavelength increases it might appear to be propagating from an external viewpoint.
There already is a known phenomenon called “gravitational red shift”. It doesn’t necessarily involve red shifts going off to infinity around black holes.
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Gravitational Redshift
(in general relativity) the shift toward longer wavelengths of electromagnetic radiation emitted by a source in a gravitational field, especially at the surface of a massive star.
http://dictionary.reference.com/browse/gravitational-redshift