Board Thread:Theories and Speculation/@comment-995176-20141108204910/@comment-3230610-20141110185500

Well, familty tree-wise, Kaguya's chakra split into two ... 1) Hagoromo, 2) Hamura.

1) After that, Hagoromo's chakra split into two .. Asura's descendants are the Senju and the Uzumaki ... Indra's descendants are the Uchiha ... We all know that, but, let me explain where I'm getting it .. 2) After that, Hamura's chakra split into unknown descendants ... One clan which descended surely from Hamura, are the Hyuuga .. 3) Yes, there is a 3 ... We currently are not aware of who exactly of the two(Hamura/Hagoromo) or even another one, was the ancestor of the Kaguya Clan(Shikotsumyaku KKG).

The point I wish to expand is the 2nd one ... As we all know, Hyuuga married each other in order to keep their dojutsu "clean" .. But, the only thing they actually did was to keep it stable, or even devolve it as generations went by .. Well, the point I need to make is that by marrying a descendant of Hagoromo(Naruto) and a descendant of Hamura(Hinata), those two different chakra will be mixed once again inside their children(i.e. Boruto and Hiwamari) .. Which means they will have chakra similar to the Rabbit Goddess .. So, the only logical explanation is that the dojutsu, will be evolved ... and not disappear at all ...

But, that is just me ... As @Blackchaos27 correctly stated, that although being one of the Three Great Dojutsu, Byakugan is underdeveloped compared to the other two ... And it should be developed... And I hope it will be, starting with those two kids ...