Thanks to some resourceful users over at XDA, the HTC Droid DNA now has full a full S-OFF exploit tool. Having S-OFF (basically) means that the NAND storage of the device is opened up and able to be freely written to. With full S-OFF access, users can write custom ROMs, recoveries and other firmware hacks to the device, as well as obtain permanent root access. The exploit requires both root and superCID, and won't work on the latest update according to the poster (they're aware and working on it). You'll need to be somewhat handy with a command prompt or terminal, ADB and Fastboot to get it done.
If you're interested in going through with obtaining S-OFF on your own Droid DNA, hit up the source links below. Remember that while the process seems to be working, no tool is perfect and there are risks associated with any hack of this level (above and beyond the warranty issues).