*EDIT* Want to make this clear so nothing is missunderstood. There is another game in development, I will not say its name, that has a very promissing PK, woops I mean PvP system. It has even me, a very hard core anti PvP person thinking twice about it. If this game can make this PvP system work and it eliminates everything that was ever bad about PvP, like it claims, then their might and I stress MIGHT be a new arguement with strong facts and figures to reopen the PvP issue. But until this system prooves itself there is no thought of adding a PvP system other than arenas and guild wars.
About the servers though... I have to be completely honest with you. If you happen to have the servers to donate to the team then I would not expect to see too many different servers, let alone ones dictating to a style of play.