Before the end of the first quarter of 2013 we will be making the Linux version of Lightworks available as a Public Beta, the same as with the latest Windows Beta. A confirmed date will be announced once we finialise some more improvements.
There is still a lot of work to be done primarily in finishing off the new licensing scheme which we will be trialling with the Linux Beta. If it proves successful, this same licensing will be rolled out to the Windows and Mac versions. More information will follow early next year as it becomes available.