First, the beta of Liandri Tournament will be delivered without mods, with 4 maps or more.
A mod can change the graphic style of the menu will be handed out, it will eventually be followed by a mod that will change the user interface.
Finally, a mod based on the demonstration map of the UDK will be handed.
I have not yet scheduled the release date for this beta, the best way to be there when it is published is to track the game.