Unfortunately there will be some changes to the Season 4 Epic rewards as you can read here on wow-insider.
The new Season 4 items will have the below personal and team arena rating requirements:
This is bad news for everybody who doesn’t play with a cookie cutter setup, or who just isn’t very good as pvp. Teams below 1550 rating (the majority I would think) won’t get any rewards. This will probably change the Arena landscape, as I assume a lot of people will just not bother anymore with Arena. And this will leave the hardcore pvpers battling it out amongst themselves, and they might be struggling to get a decent rating.
Has Blizzard thought this through ? You would think so. I really wonder what the mindset it of the people that come up with this stuff…