I suppose there must be merit or else Acacia wouldn't waste their time on it. Endologix, of course, denies that there is any merit - what would you expect them to say? If you type "Lifeport Sciences patent" into google, the first listing from priorsmart has the complaint and the patents alleged to be infringed upon. I don't know of any way to follow the progress of the suit. I doubt you'll hear about it again until you read about a settlement.