I too was going to upgrade my 5DII soon. Now I'll just wait to see what's going on.
The light leak issue is real, at least to the point that a light on the LCD does move the meter, and it is reproducible. That's not very comforting when it comes time to decide on spending almost $4000 on a new body. I tested my 5DII and 60D, and they were not affected.
Many other photographers have commented that the 5DIII routinely underexposes by about 2/3 of a stop. That also is not comforting.
Remember, the 5DII had a "black spot" issue when it was first released. It only really mattered in Astro photography, but Canon fixed that. They also modified the 24-105 f4L soon after production. If there is a significant issue with the 5DIII, I expect Canon will address it.
I'm not leaving Canon, but at $3500, I hope to be wowed and not worried.
Anyway, I'll wait for the full review from DPR now, and for an answer on what's going on with this "recall" if it is a recall.