no, the game is fine. They pushed back the release of gu51 twice due to the fighter revamp issues. They (the devs) just recently decided to push out gu51 without the fighter revamp while they tweak it (well actually start over again with it).
You really should read the update notes! Its all been cover ad-nauseum
Here is a link to the latest dev chat
http://eq2.allakhazam.com/wiki/Dev_Chat_Mar_23_2009