Six new pets (three Battle and three Companion) pets were datamined in the latest Patch 10.1.5 build. Currently, there are no sources for these Battle Pets, but these will likely come from Time Rifts and Whelpling dailies.
New Battle Pets from Time Rifts in Patch 10.1.5These are normal battle pets that can be used for battling. These pets will likely come from Time Rifts.
Pallibrius Princess Vorquinstrasza Somnius New Companion Pets from Time Rifts in Patch 10.1.5The below pets are all classified as companions and cannot be used for pet battling. These will likely come from the new whelpling dailies in Patch 10.1.5.
Posidriss Zalethgos Zhusadormu Read more on wowhead.com