The latest WildStar DevSpeak focuses on Arenas and Battlegrounds and finally reveals additional information about PvP features. The interesting thing is that both features have much in common:
1.They can be played in either open or rated mode.
2.They both reward you with PvP vendor currency known as Prestige.
3.In open PvP world after being ganked, you respawn with 30 seconds of PvP invulnerability, unless you attack someone
4.Rated matches give you rating-specific rewards and allow ELO matchmaking (ELO is a measure of your strength calculated from your performance in rated PvP. ).
5.Levels and gear stats are normalized, in this way balanced matches will let you focus on crucial things in PvP like avoiding telegraphs and fast reacting.