Could you break it down for me? I can read that two ways: the first being "There will only be one release, it's the LE release. One run.", the other way being "There will only be one run of the LE release" which doesn't address if there will be a standard release. I have the feeling that he intends to say there will ONLY be the LE release, though
Since he references Liar Princess and the Blind Prince and Lapis x Labyrinth it indicates the “retail” he speaks of is “non-NISA exclusive” since both of those were also available at Amazon at one point. At least that’s my understanding.