That's an old idea ..
Why can't we list our PvP points with a simple command.
This should be easy to implement it because game knows how many points you have everytime. Whenever you died or killed someone, your pvp points are updated and if you manage to reach another title, it shows instantanely... but in huge mass battle, you can barely read chat with lag/message/spam... so a quick /pvp points will show the current points you have.
Just an old idea that will collect dust in that forum I guess...