I just pre-ordered mine. It's up on the Verizon site, or you can call and order over the phone. As you go through the pre-order process online, you'll get to a page that has accessories. Right now it's fairly limited selection - a few silicone cases, a plastic case with kickstand and a leather pouch. Otherwise nothing else specific for the DNA (dock, wireless charger, etc.)
Just a note regarding keeping your unlimited data. If you have multiple lines on your account, you can use the upgrade from a different line (that doesn't have unlimited data) to get the phone at the discounted price, and then just switch it over to your unlimited line. That's what I'm doing. We have 3 lines on our account, and mine is the only one that has unlimited data, so I'm using the upgrade from another line, but will activate the phone under my unlimited number.