When the Droid RAZR HD was announced, Motorola was quick to note the Android 4.0 powered device would indeed be getting an update to Android 4.1 Jelly Bean by the end of the year. One could conclude from that that Motorola has been doing some testing of the update in an effort to get it ready by that time but alas, owners are still waiting. While we wait though, the more adventurous out there may want to check out a new Jelly Bean leak that has now popped up.
Labeled as "9.1.39Xt926.verizon.en.us" this release is noted to be non-official and carries with it the typical slew of warnings, like the fact that if you load it - you may end up stuck on this build for a while and it's potentially full of bugs.
You won't have to be rooted to load it up but you should be stock, it can be side-loaded as well but if you're looking to keep the root access you currently have you'll need to back up root using OTA Root keeper. Again, not for everyone to take for a spin but if you're interested, you can hit the source link below to learn more and grab the downloads.