I listened to arkona, very folky. Interesting, I do like it. They aren't as BM as you guys. It's possible to use them for the split but I was almost thinking a band abit more .. evil
Not to say they can't be - I'd have to hear more songs from them. I don't even know if Spazmosity would be a good match (have you heard them ?
www.spazmosity.com - kind of like Dissection)