Apparently the following changes will be made to the Emperor's Children in the revised Isstvan Campaign Red Book:
- All models with the Legiones Astartes rule gain +1 initiative on the charge
- Sonic shriekers are now -1 WS to enemy models in base contact which aren’t immune to fear. Affects the full length of the combat (not just first round), not just if you charge.
- Phoenix Terminators are WS 5
- Kakophanii weapons are Heavy 2, previously Heavy 1