Sure, they bring out many scenarios. One that's been popular here is that before the fall, light was faster, near instantaneous. Then, at the fall, it slowed down.
Another popular idea is that light was created in transit. Even though the star is further away than 6000 light years, the light traveled a shorter distance since it originated at a distance appropriate to reach the earth at the right time.
The question I have regarding either of those scenarios concerns the photon after the Fall. It would seem that the first photon after the Fall would be one just as those we currently see, limited to the speed of light.
Wouldn't that mean that at the moment of the Fall, all the stars would wink out of view, only to gradually reapear in the skies as the first of the normal photons reach the earth? If so, there are no records of such events, and we do know that ancient civilizations kept pretty good records. It's likely they would notice that new stars showed up every night.
Aslan is not a Tame Lion