We have been told at one point recently that the codex for the Sister's Of Battle (Adeptas Sororitas) was done. Now we are getting more news that not only is the codex done, but the models are in production right now for a full release, Dark Eldar Style. This would definitely be fantastic looking for a Q2 release.
Please remember that these are rumors.
via Zion on Heresy Online
From a little Ripper Swarm to me:
The Codex is done, the models are in production, and it's nebulously a Q2 release. It's the Dark Eldar treatment-- rebuilt the range from the ground up, completely.