Horus Heresy Board/Miniatures games

[Gareth]

No I imagine it's a core game system. From what I have heard the concept with GW now is
AoS - intro system simplified rules
40k - standard system, more detailed rules
HH - veteran system, aimed at collectors

The LotR/Hobbit should be getting removed form stores, so GW still maintain a three system catalogue, with HH replacing the Tolkein franchises.