The "Secrets of the Byakugan" that were mentioned in part 1 by Hiashi and Neji and were the whole reason behind the Caged Biird Seal still haven't been unveiled, so I hope it's something good. If they don't ignore it anyways.The Byakugan still holds many secrets. Boruto was the only one seeing Momoshiki's spirit because of his "Byakugan blood". But now when I think about it. Momoshiki was rather relaxed while realizing that Boruto has Byakugan blood mixed within him. He wasn't worried about Sasuke's Rinnegan either.
How come the clan isn't worried about another species having their eyes and source of power? Doesn't make sense tbh