Board Thread:Boruto Discussions/@comment-25122992-20170223182539/@comment-890307-20170227234756

Ravenlot 27 wrote: Well, we don't know if anime will be an adaptation of manga one in one. I mean, we clearly must be prepared for a significant amount of fillers again.

They have already said it will be an original story. Though if it starts with an original story and goes somewhere else is a different matter.