GW was challenging enough before. Now I don't even want to try GW. Which is bad because it is the lifeblood of this game. If you cant complete GW you will not make any gold to upgrade, promote your toons. If you can't do that players will stop playing as it will be pointless to play.
I like the changes in the arena as it sounds like you accomplished your goals. I believe we will start to see more variety in matches.
However Gw needs IMMEDIATE attention. Like several users suggested earlier if your armor completely refreshed after each round (at least for now to buy time to refine it) Gw would be fun again. The way it stands is ridiculous.
The challenges take way to long for a FTP game.
With several of your pricing models on gem packs I believe you guys are still confused and think this is a AAA MMO like WOW or SWTOR.
I think you guys jumped the gun on this update and tried to do to much to fast. Also as several users suggested earlier it would of been wiser to just start with protection first to see how the game evolved form there. You cut to deep to fast IMHO.
Yoda also needs IMMEDIATE attention. Take the 2nd hardest toon to achieve in this game and make him useless, not wise.
All in all if you can can fine tune GW and the daily challenges I believe this update can be successful. However if GW stays unrefined this game could easily collapse upon itself .