Some questions regaring PvP / PvE

[jextwah]

1. What instanced/battleground style PvP is there?
2. Is there world pvp / open pvp? Faction based? PK based?
3. Are there Dungeons? If so what sizes / difficulty structure
4. Are there Raids? If so what sizes / difficulty structure
5. Any world boss style events?
6. Maximum players per map?