Board Thread:Naruto Discussions/@comment-29769110-20160910222844/@comment-25449165-20160925185749

Uchihaorbust wrote: It was confirmed in early Naruto manga chapters from the original series that a hyuga decedent such as Boruto who has a diluted blood line due to mixing can end up awakening a byakugan in just one of their two eyes although this is not often seen it was confirmed that it can happen.

Himawari had awakened the Byakugan in both eyes, despite having the same amount of dilution in bloodline as her brother. If Himawari had did it, it would make sense for it to happen to Boruto as well.