Of course, there are and will be new themes from the official soundtrack of the Hobbit trilogy for nearly every faction, apart obviously from Rohan, Isengard and Gondor.
I'm sure you will easily find them on YouTube, singularly or the whole official soundtrack from Howard Shore.
You fortunately don't have to rip anything from anywhere
I suggest you search for the themes you are interested online, in official or just fan-made websites, and then listen to them on YouTube; honestly, it's the easiest way I could think of, instead of extracting them one by one from the Edain Mod's files