Thread:Dim1/@comment-5494867-20121106001324/@comment-3551173-20121106003337

Well that's because of content availability. I mean there are currently 10 volumes of SAO, excluding of Progressive. The 25 episodes covered 1-4 and part of 8. Since the Alicization arc isnt finished the total available content after the anime is done is roughly 3.5 volumes. So yeah it has to end it isnt a weekly manga like Naruto or Bleach, so the content is set, and filler is bad since the plot is not really open for that. So if that answers your question great.

Regards