Rather than unroot, you could just wait a week after the official release and the development community will release a polished version of official 4.4 (minus carrier bloat). You could just flash that. Technically you can run unofficial 4.4 now.
The problem with accepting an ota is that it can, at best unroot the phone. In some cases can cause bootloops. Not to mention, ota's typically close the exploit used to gain root access. Meaning, you need to wait for the devs to find a new method of rooting. I would never recommend accepting an ota update.