Coming to Blu-ray May 26, 2015.

From Arrow Films (this is for their U.K. release, however, their U.S. release is on the same day):

SPECIAL EDITION CONTENTS:
Brand new restoration from the original negative
High Definition Blu-ray (1080p) and Standard Definition DVD presentation
Optional English SDH subtitles for the deaf and hard of hearing
Brand new interview with director Nico Mastorakis
The Films of Nico Mastorakis – the director hosts this documentary covering his varied career in cinema, including a look at Island of Death
Reversible sleeve featuring original and newly commissioned artwork by Graham Humphreys
Collector’s booklet featuring new writing on the film, illustrated with original archive stills and posters

DETAILS:
Region: Free
Rating: 18
Cat No: FCD1106
Duration: 108 mins
Language: English
Subtitles: English SDH
Aspect Ratio: 1.33:1
Audio: Mono
Discs: 2
Colour

According to IMDb, it is 108 minutes long, so I'm guessing it's being released uncut.

Why wouldn't it be? Island of Death has been uncut in the UK for years.

In fact Island of Death has even been shown on UK TV uncut quite a few times.