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They will be adding a matching system based on the elo system used in chess.
They are also adding several new pvp armor sets that can be acquired soley through pvp and perhaps will also be sellable on the auction house.
Don't know what they are going to do about grym coins and gg gear but they may be phasing it out to replace It with something else.
They are also putting in a leaver penalty so the first 2 people to leave a match and the first 5 to
leave a gg match will be unable to que for anything for 30 minutes.