Board Thread:Boruto: Naruto the Movie/@comment-27511601-20151231033632/@comment-26369387-20160105230933

To quote FF-Suzaku from here:

FF-Suzaku wrote: Christ. I wish people who don't know any Japanese would fucking stop trying to translate Naruto news.

原作 ("original work") means the author's original work that all the derivative works are based on. In the case of Naruto, 原作 always refers to the original Naruto manga by Masashi Kishimoto. In short, "canon."

In Japanese, "filler" is referred to as オリジナルストーリー (literally the English words "original story"), sometimes as アニメオリジナルストーリー ("anime original story") or アニメ版オリジナルストーリー ("anime version original story").

In short 原作 = original work = canon. オリジナルストーリー = original story = filler.

The blog's "end of the year" message is:


 * We appreciate all of your rooting for Naruto Shippuden this year, thank you very much.


 * The end of the original work Naruto, the theatrical release of Boruto, and the start of our original Jiraiya Ninja Scrolls arc -- this has been a big year for the staff at Pierrot.


 * Next year, there will be Itachi Shinden, and then from the original work... Kaguya is coming.


 * We humbly thank you for your ongoing support of Naruto Shippuden.


 * (Here's the key visual for the Jiraiya Ninja Scrolls arc, drawn by Kurotsu-san.)

In other words: "Next year we'll release Itachi Shinden, and return to canon with the arrival of Kaguya."

So, yeah. It's not going to be filler. We're getting back to canon.

FINALLY!

As for "will Boruto-series get its own anime-series"-question, I don't see why not.