In volume 4 of Boruto, it lists Moegi as having Wood Style on her character profile, and then throughout the rest of Boruto it pretty much disregards this fact and doesn't bring it up once. At least that's the way it was, until Blue Vortex came out and showed that one of the Ten Tails clones is based off Moegi, leading many to speculate that her Ten Tails clone might be able to use Wood Style.
My question to you all, is how do you think she obtained it? Besides her, Hashirama is the only natural user of Wood Style, and all others who have used it have only been able to get access to it through Hashirama's cells, leading most to assume that Hashirama was the first and only person to have Wood Release as a natural Kekkei Genkai, until Moegi came along.
My theory for now is that her clan might be distantly related to the Senju in some way, resulting in Moegi somehow getting the Wood Release Kekkei Genkai passed down to her. It's not too much of a stretch to assume this, since Mukai of the Kohinata clan had one Byakugan in his left eye as a result of his clan separating from the Hyuga generations ago. Same thing with the Uzumaki and Senju clans, they were distant relatives, yet both their members had a penchant for having large chakra reserves and immense vitality.
Maybe Moegi is distantly related to the Uzumaki clan, due to being a redhead, although not as red as an Uzumaki's hair, and since the Uzumaki are distantly related to the Senju, somehow Hashirama's Wood Release gene passed down an manifested in her. It might be a crazy stretch, but since the story isn't telling us anything, it's the best I've got. It would be cool if one of her ancestors was related to Hashirama somehow; What do you all think?