User blog comment:Captainbarbossa9821/test server access/@comment-4087312-20111116184130

It really is based on the needs of Disney. If they are in desperate need of more "TESTERS" they release a bunch of new accounts; as was the case with the new Ship Customization. When new items are not coming out, they tend not to release as many accounts. If you ever see them make an announcement about test server access, there is a good change they will be releasing more accounts very soon. So sign up and make sure you don't do anything bad to get you banned in the mean time!