For page 10 (The final page), Isayama discusses the future plot and even the ending of SnK, so here is a direct translation of the entire segment:
Mr. Horiguchi shared with us his expectations for the future, so now, Isayama-san - please let us ask you what your mind has planned for the future.
Isayama: Tankobon Volume 20 will be released on August 9th, and it will approach the climax of the story. So everyone: please keep reading until the epilogue.
Horiguchi: So we will know the truth behind SnK’s world? I really want to know the answer. (Laughs)
Isayama: Since I don’t want to expand the story any further than my current plan, I will hurry up and reveal the answer soon!
Horiguchi: No no no, wait a second, I didn’t mean to push you. (Laughs) I still want to enjoy the manga for a while longer. That being said, my own wish is that there can be a happy ending where people can live freely with no walls. To me a sad and dark ending is, well…
Isayama: Until recently, I used to fully take the stance of creating a dark ending. Before, I wished I could shock those who have been following the manga. And all I thought about was to somehow betray the readers who are enthusiastic about the work. But now, as I am turning a little bit older, my mindset has shifted. I am still not sure how the manga will eventually turn out.