Sorry, I don't have a link. I was told by a guy who works for a news agent. He was invited to attent the NPS(Nikon professional service) meeting in Beijing to try the Nikon D4. He heard this rumor from that meeting.
How come this topic gets no replies, when the "fixable in firmware" topic is flooding with responses? I think the battery issue is MUCH bigger deal and it could possibly stop the camera from hitting the shelves entirely.
A shop in Norway taking preorders has posted stock to: "Unconfirmed 19th of April"