Someone from nosmate.com has send a email to g&g about the release. This is the reply:

As we noticed, We will open with SSO(Single Sign On) system.
Unfortunately, we have a problem with this SSO system, and none of newly added GSP registered games(that you can check at www.gamengame.com) are available at this time.
We are very sorry for delaying of nostale and trickster.
We are trying to open it soon as fast as we can.
It won\'t take long time.

Launching date of CABAL and Dragon Gem will be on 24th of July.

Ran Online, Infinity, Trickster, Nostale will be launched after that in turn.

We will do our best. Sorry for your inconvenience.

Thank you.