B&H Photo Video has updated availability of Canon 5D Mark IV body, it will be in stock tomorrow. Other US dealers like Adorama will be also shipping soon.
Canon EOS 5D Mark IV Body – $3,499.00 – at Amazon (Sold out again) / B&H Photo Video (In Stock on September 14)/ Adorama (In Stock Soon) / Focus Camera / Canon Authorized Dealers via eBay / Best Buy / Abt
Canon EOS 5D Mark IV Body w/ EF 24-70mm f/4L IS USM Lens – $4,399.00 – In Stock at B&H Photo Video / Adorama / Canon Direct Store / Best Buy