Shapeshifting races or classes in Camelot Unchained are not confirmed yet, but hints, speculation and lore revealed so far point toward Cait Sith of Arthurians, Phouka and Banshee of Tuatha Dé Danann and Úlfhéðnar of Vikings. It should be noted that the very races are, also, still unconfirmed.
- Mark Jacobs in Kickstarter Update #59, speaking of Cait Sith, mentioned considering "...the possibility of them being shape shifters" 
- Phouka`s eventual shapeshifting was considered in Kickstarter Update #72 
- One of the boons/abilities of Banshee, suggested in Kickstarter Update #67, was shifting into incorporeal form
- Based on their lore, northern mythologies and overall design of Camelot Unchained`s Vikings so far, it`s likely that some members of that Realm will have some form of shapeshifting