Currently the way wild shape is implemented, a druid will not revert back to their original HP while shape shifted. You will find this out if you go and try to murder some druids.
When brought to zero HP in their wildshape, they just die. Maybe this is done for the NPC because by default they have a much higher health pool than the player characters do. But when they release the druid I really hope they do it closer to how the book does it, because otherwise the druid will not feel right at all.
Also, please make sure to add in moonbeam and flaming sphere (this goes for the light cleric as well).
