Although there is no Jelly Bean, you might consider looking at the Ice Cream Sandwich ROM:
forum.xda-developers.com/showthread.php?t=1932597
There are two things you can do to make this perform much closer to CM10.
One is to freeze unwanted stock apps using Titanium Backup.
The second is to tweak the kernel settings for better performance using "Pimp My Rom" or any other such tool (Thunderbolt, Adrenaline, etc). There is a huge difference in network performance such as web page load time, and download speed.
http://forum.xda-developers.com/showthread.php?t=1908269
With these two changes, I have both LTE data, all the apps that CM10 would run, and almost as good performance.