User blog:Emigario/Ojamajo Doremi 19 Confirmed

Somebody on tumblr posted this: http://ojamajomagic.tumblr.com/post/120551729885/ayyyy-the-second-ojamajo-doremi-18-novel-is

And Midori Kiriyama (the man who made the light novel series) said 18 will be the last installment.

Looks like they'll keep going till Ojamajo Doremi 434589875434576543456786545676545678765435678654567898765.