The last I heard from Liam, GW was rebranding all its stores as Warhammer stores, there are dedicated Forge World stores and dedicated Black Library stores, although very few of the latter two.
Forge World shut down further production under the Warhammer Forge section of the company and ceased making things like the Warhammer Terrain they did (bastards).
Can't see.them being bracketed under a new "Games we can't be arsed with" division when they're a strong company in their own right. With the Horus Heresy range they practically print money, so I think that might be bollocks.
However, this is the firm that destroyed one of the greatest wargames ever, on a whim, so anything could happen!