Didn't notice this little thread until now. It's my little pet project
Actually it's called OctLight, but it's too late to change the name now.
I've just started coding on it and so far only a basic scene graph, LWJGL renderer and NWN model loader is implemented. I considered using Xith3D or jME for the scene graph, but I think there are limitations with both, especially concerning lighting. I don't need a super advanced scene graph, the main focus will probably be put on the map/object collision detection engine.
It's a long feature list, so if someone wants to help out on some part just contact me.