Board Thread:Theories and Speculation/@comment-5413572-20150114180437/@comment-4470702-20150716002530

Personally I think that Kaguya's Byakugan was a Kekkei Mora and not a Kekkei Genkai. Thus it was more powerfull than regular Byakugan and possessed Tenseigan power inside it as a default. The same thing is with her Rinne Sharingan. It possessed Sharingan power inside the Rinnegan (or Rinnegan's power inside Sharingan as you wish). Her Byakugan doesn't have any other form like Rinne Sharingan did though so it can indeed be a source of speculations.