Despite having past issues with Exynos processors, the CyanogenMod team has already released the first CM10 nightly for the international version of the Galaxy Note II. This is, of course, brings stock Android 4.1.2 to the oversized handset.
It could oftentimes be unstable and not properly tested, lacking any changelogs, but eventually evolving into alphas, betas, release candidates, and finally stable releases.
If you plan on giving this a shot, don't forget to grab the appropriate GApps package, too. Otherwise, you'll be running around with a Google-less phone. How embarrassing.