Board Thread:Naruto Discussions/@comment-26135923-20150707130017/@comment-1512913-20150707144257

Kaguya = Hagoromo + Hamura. Naruto + Sasuke (Asura and Indra) = Hagoromo Boruto/Himawari = Naruto (Asura) + Hinata, who seems like maybe half of Hamura

So Boruto/Himawari are quarter Hagoromo and less than a quarter Hamura at most and that's a stretch. Not enough to recreate Kaguya.