GW has moved teh Sisters from Witch Hunters to Sisters of Battle.
Forgive me if this is in the 'Sisters WD codex 'leaked' thread. But that one is getting waaay long and thought we could use another one!

Interesting note on the website: They now list the heavy weapons (Hvy Flamer, Hvy Bolter, Multi-Melta) in the Elites, Troops, and Heavy Support sections.
Would be nice to have the Hvy Bolter option with my regular Sisters.
I did notice that the Hvy Flamer was pictured with the Retributors in the WD codex.