Board Thread:Anime/@comment-108.200.170.159-20160206074920/@comment-26495049-20180711193732

Shawntitan89 wrote: I thought Marley arc was the last arc

if not could i please have a link to the article saying otherwise. It's not confirmed, the reason I say that this is a new arc is because the story appears to be moving away from Marley now, and focusing more on our Paradis characters again.

As for why this is likely the final arc in the series, Isayama had given an interview a couple years back, saying that the manga "is more than 60% done". A rough estimate given the manga's monthly release schedule would indicate that the series has about ~20 chapters left, equivalent to the length of a typical arc like Uprising or Return to Shiganshina.

Hope this clarifies things.