I think that Arlinns pack is involved. She is the alpha so the others will joined most likely. I think there was a story were she was able to hold back some werewolf from attacking Halana and Alena or somebody else... I am not sure.
I imagine Arlinn has/is going to be gathering werewolves convincing them to join her side. Her planeswalker card is called 'Pack's Hope', especially. Presumably, the hope is for a better brighter future living alongside humanity.
Rather underwhelming for what seems to be a big story moment, but it's a decent coven enabler.
Based on Might of the Old Ways, I bet this either depicts a later attempt to hold the line at the Celestus or the card's attempt fails and the Dawnheart Coven never manages to successfully defend the Celestus.