I would ask the dev's (once they know when xonotic would be released) to give video editor's like a few weeks atleast notice so they could record stuff, maybe ask for a few things that have to be in a trailer, anyway, let people make video's and then let the Dev's pick the one's they think are the best for the release, for example there might be one trailer that shows a variety of things like menu, weapons, models, and one that is more in the style of a trailer building up dramatic moments with just frags/gameplay etc.
Either way, I think it's better to let everyone have a go who wants too at creating something, this way you get more video's and better productions.
I would have a go but all my time is spent on either poker and my nexrun production which is going to take sometime to edit as i'm hoping to make it one of the best video's released for nexuiz/xonotic so I don't think i'll have time to make something unfortunately
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