I was reading a blue post, and found this rather pleasing note.
Nakatoir: One issue that can arise with the rating requirements on rewards with the new MMR inflation system is that rating is going to inflate throughout the season for those that continue to compete. This could make rating requirements such as those you have mentioned much easier to attain. As said however we are looking into ways to implement more vanity rewards into PvP and we will update you with more information on this when it becomes available.Posted by Deadandlivin
Then you could also throw inv arious special Mounts or Pets between the 2000-2700 range or something.
It's good to see that Blizzard is willing to implement vanity rewards for the people who put a little bit more effort into the game.