With the coming Arena System the question arises, how fast You will be eligible to receive the awesome arena rewards. At WoWSzene.de this chart has been published:
[table id=1 /]
This basically means, the higher Your teams rating, the faster You will be able to get the rewards. As seen on the Arena Reward Page a mace rogue will need roughly 5625 points for weapons and 8250 points for armor. This means it will take roughly 8 weeks for the Top Arena Team to get all their items.
Just take note that the top Arena Rewards do not necessarily need to be the top PvE rewards. Arena items are all about standing power while for a Rogue PvE items will all be around maximizing damage output.