Routed units are returned back to normal at the end of the round.
Step 4 of the Action Phase:
4. Clean Up
All remaining Support and Defense Orders are now removed
from the game board and all routed units are stood to their
upright position (see “Retreats and Routing” on page 21 for more
information on routed units). The Messenger Raven and the Valyrian
Steel Blade tokens are both flipped to their available (non-faded)
What if routed units are attacked again in the same round? The rules say if forced to retreat, they are destroyed. But it also say's that they cannot be chosen as casualties. Casualties would only apply to a card being played, not defeated in combat, correct?