The 'LE' originally referred to the 1992 Chestnuts, Pralines and Slates, but then the LE tag stuck from 99 until the end of 2001, after that they were plain Air Huarache, until they retro'd the Voltage in 2004 - it was probably just an over sight by them not to rename it, then after that back to...
There hasn't been a pair of Air Huarache LE since 2004 - that was the reissue of the woman's White/Voltage, everything after that is plain Air Huarache, and that includes everything from 2013 / 2014.
You can see a full list of Huarache names, style codes and colours if you buy the poster I put...
I can see the 2013 OG retro (pink/blue and green/gold) just getting more expensive with every new Huarache release, if I were you I would get them now before they become really silly money