There won't be a DVD release, I'm afraid (or not one over and above Sony's existing
Hammer Icons of Suspense box) - as of October, Indicator has been a BD-only label.
Their press release explaining the rationale behind this decision is reproduced
here.
(There's been one exception: November's Ray Harryhausen box was released as a dual-format edition for continuity with the others. But that's definitely the last one.)