I have covered the Nikkor 24-70mm f/2.8 lens light leak few times in the past (see blog and forum posts) and it seems that Nikon is responding to this issue, at least in Korea. This is what we have so far: Nikon Imaging Korea issued this service notice (in English) which basically says that they acknowledge the problem and will fix it for free. My understanding is that Nikon will provide free 24-70 rentals for the duration of the repair (not sure, but I think this offer will be valid for the first 300 claims).
Here is the direct Google translation, you get the idea:
"This phenomenon, under limited conditions, the phenomenon is extremely rare. In normal shooting is not a problem. However, depending on your discomfort occurs if you want products that can be done after the necessary measures."
This is the video illustrating the problem:
No word for now if other countries will follow this service advisory.