I received my D4 on March 16. As of today, Dec. 27, it had 190,000 actuations. I said "had" because I dropped it off the tripod from shoulder level today along with the 200-400 mm VR. They broke in half with a fair amount of damage at the mounts. Needless to say, it was a lousy day here. Tomorrow, I will have to deal with the insurance adjuster and see where I have to go from here. Hopefully NPS and State Farm will make this tolerable.
Back to the question, I replaced two shutters on two D300 bodies at around 210,000 actuations each. One of them was up to around 300,000 when I received the D4 and hasn't had much use since.