Act, no not yet. The releases are in batches, the first, released at the beginning of June 2014, was the first three albums in various formats and combination packages with optional extras, bonus tracks, etc.
Page had announced all this over a year ago, if memory serves, promising that all the Zep albums would be re-released as remasters during 2014. Not sure what the next milestone date is for the next wave. Obviously IV will draw a pretty big audience. I saw somewhere that Zep is now 'charting,' at least in the UK for the first time, probably, in decades.