As devoted fan , i am very glad yans is still working on the story
If you feel bored that its long, you either didn’t understand the story like u are supposed to, or this is just not ur type
It was meant to be a long a long story and it is, it is not stretched. we got to see our beloved Ciel and Sebastian for years only getting better every year
This was not meant to be a 12-24ep anime
It is one u commit to , and yana made it so good so we never get bored; every thing is planned and shown perfectly in my opinion

Yana should have ended Kuroshitsuji a while ago. There have been many stories that, despite interesting, are fillers and a bit bothersome.
I feel there have been elements that got stretched way too much that didn't have to go with the story, and now we have these... chapters that look more like extras. Directness, action, plot moving. That's what we need now.
When stories get dragged this much generally the ending is not good, generally they don't know how to finish said story.