For what it's worth, the blu-ray.com article does mention a standard Blu-Ray release in addition to the limited edition, Zavvi-exclusive steelbook. The steelbook is also limited to 4,000 copies per the zavvi.com
Originally Posted by blu-ray.com
StudioCanal has revealed that it plans to release on Blu-ray Robin Hardy's classic film The Wicker Man (1973), starring Edward Woodward, Christopher Lee, and Diane Cilento. According to early reports, in addition to the standard Blu-ray release a Limited Edition SteelBook will also be available for purchase exclusively through UK retailer Zavvi.
Technical specs and supplemental features to be included with this upcoming release are yet to be revealed, but the preliminary release date set by StudioCanal is October 14th.
Cult horror classic in which a devout Christian policeman (Woodward) is summoned to a remote Scottish island to investigate the disappearance of a child. While there he uncovers a bizarre pagan cult, led by Lord Summerisle (Lee). As preparations for a sinister ritual celebration reach fever pitch, the policeman begins to realise what role the islanders intend him to play. Britt Ekland and Ingrid Pitt co-star.