Here is another idea I had, a small pvp area in or around one of the main cities or in the myst lobby area.
The idea would be to have a small fenced off area with 2 entrances and as soon as you enter the inside of that fenced off area you become flagged for pvp and could fight anyone that entered the fenced in area.
They had something like this in Lineage 2 here is the best video I could find that kinda shows a birds eye view of the arena while players are pvping on how it worked the area was called Gludin Arena: http://www.youtube.com/watch?v=GQeO4KnmgOk
“Heroes Are Rare, Become One.”