Is Alientrap planning to add a multilangual interface to Nexuiz, if not is it possible to create this kind of interface? I would be glad to take the Dutch translation into my account, I'm also possible to submit German and French additions/corrections.

I'm sure that this addition to the game will increase its popularity

The current interface is not multilingual and the current focus is to get 2.4.1 out of the door to fix all the reported problems for 2.4..
Also please remember that the interface and messages like you get from the server are two different things. The first is easier to make multilingual though

I totally agree, bug fixes should have priority.
Even though the server message are different it would be a good idea to start with the user interface of Nexuiz since you said it's not too hard to create.

You could probably make use of the http://launchpad.net/ service to simplify the editing and translating.

I could provide a russian translation, if it's ever going to be needed. We've got enough germans here to have a german translation too.
Bugs first, anyway.