The ending of Misfile is relative here, he didn't put a timeframe on it, it could be years off. Basically, all he's confirmed is that it's ending "someday".

I couldn't comment on anything beyond May the 19th, 2017. I'll probably catch up next year or later.

"Or, my pet theory is true: By playing with their files, Rumisiel only changed their memories, not reality itself. They come to accept their lifes, and finito."

I've seen a Japanese anime based on a manga do this before Misfile even started. It certainly would be less work. However, I believe this has been specifically ruled out.