PhantomTriforce
I am a Person of Interest
Octoroks may be moved to the land, but they can still have a species of them living in the water. Also, they should not feel limited to bringing back enemies, they are also free to make new water enemies.
Zora being enemies isn't a new idea... although, I hope that they have the old Zora design from LoZ and ALttP if that's done. I can't picture the OoT Zoras as enemies. It just wouldn't feel right killing them.