Tanigawa released a new volume a few years ago, like 10 years after the last one. But still, it probably doesn't have the popularity it once had so a new animation sounds unlikely.

The most recent LN is volume 13, which came out in November 2024; it's on my shelf but I haven't got round to reading it yet. (The big gap between volumes was between 11 and 12: frankly I'd assumed that the author intended the end of volume 11 as the ending of the series. Volume 12 was in 2020 and was about half stuff the author had already published in other places.)

I don't know how anime series economics works these days -- AIUI traditionally the live late night TV broadcast was effectively an advert to get the hardcore fans to buy the extremely expensive Japanese market DVD/bluray sets, which were what brought in the money. But I expect streaming has changed things a lot.

Thanks, I wasn't aware he released another just last year!

I'd assume streaming services have changed the industry. Things like Devilman Crybaby wouldn't have been released if Netflix wasn't involved.

They still do Blu-ray releases with suspiciously obvious art fixes. My intuition is that the model/merchandise market is also a lot bigger than it used to be in the early 2000s (thanks in part to Haruhi). 3D/higher quality printing and hig-fidelity digital crafting probably played a big role there.