We covered this port of Castlevania earlier this year and now can report that the game is now about 95 percent complete. The version we covered before was an early entry in Retro Games Battle 2014 and Sanchez (the dev) has not stopped working. This is an unlicensed port of Castlevania to the ZX Spectrum, Konami has not endorsed this port in any way that we know of.
Subtitled “Spectral Interlude”, this version of Castlevania is coming along nicely. For one thing, you may notice that there is more use of color in this updated version. The color usage is pretty good, adding ambience and atmosphere to the title much better than black and white shading did in the previous version.
Still no release date available but work is continuing.
Source: Indie Retro News