Board Thread:Series Discussion/@comment-27287555-20170501143734/@comment-27066372-20171113180234

DQueenie13 wrote: "Having enough base material" is no guarantee for more anime seasons. Certainly never a guarantee, but it's arguably a factor. There is currently enough base material for a single-cour season despite Mamare taking a break in the middle of volume 14. Personally, I can't see anyone being willing to risk investing money in a two-cour season like before.

But you're 100% right " that anime projects take a while to plan and sort out." Even if there were backroom discussions taking place right now there probably won't be a public announcement for a while, especially if no studio is available to animate. So I take it back; a lack of any announcement in 2018 does not spell certain doom.