So we already know there will be a holy kingdom movie. But i heard varying info about what will s4 cover.
Some said only 10 and 11. With 12,13 being a movie
Others said 10 11, 12 and 13 will be movie
And now with those (maybe fake) images
Came a new theory which i quite like
S4 might adapt vol 10 11 and 14.
And 12 13 will be a movie.
Vol 14 is the closure of vol 10. They have the same relation as vol 12 and 13.
But the LNs go mostly in Chronological order so vol 11,12 and 13 came first.
Vol 14 does not require vol 12 and 13 for it's story tho.
It has mentions of the holy kingdom, but nothing thats integral to the plot.
If vol 14 is not adapted now it won't be adapted for a while