This comment is just IMHO:
The dueling on the plaza can be annoying at times, true, I agree on this, but I am also guilty of doing it at times. However, I believe that once the Death Realm carrys a penaty for dying, then the dueling will only be to settle some form of argument or disagreement, and plaza killing and mayhem will be much less than it is now.
The arena should be the place for duels, and should also be the place for training. It is set up nicely for it except for a few missing things. It has many rooms that could be used for multi-group battles, and rooms that could be used as a training area for new players to practice in and learn the basics of combat. It has stands that overlook the different rooms for the spectators that want to watch.
I hope to see the Death Realm one day set up to have multiple spawn portals, portals that are located in different areas of the Death Realm, portals that will lead to different spawn points. Having to find your way to the portal you want should be difficult, but not impossible, just hard enough to make you think twice about dying. Of course, like I said, this is just my opinion.