Basically they have formed a new expanded portion of the studio to incorporate the specialist games, LotR/Hobbit and Forge World. Betrayal at Calth is the first example of the sort of individual boxed games they are set to produce, as well as re-releasing and revisiting older classic IPs mentioned above.
To me this feels like a return to the "Golden Age" of GW, it seems as if they're finally listening to consumers and making some positive changes to the way they run their business, which can only be a good thing in my opinion. Now just bring White Dwarf back to the quality it was during the late 90's/early 00's and everyone will be happy!
Let me know what you think. Personally, I haven't felt this positive about GW in a long time.