8
I mentioned this in another thread but based on the pics this should cover the volume 11 of the light novel, and perhaps vol12.
LN vol 11-12 heavy spoilers
Norn and Aisha living with Rudeus is a given. This means that it'll cover Sylphy's early pregnancy too, and Rudeus getting the news about the party recovering Zenith having a hard time.
It could end like this, but instead I think that this cour will go all the way into Paul's death. Plus things that happen alongside it, like Rudeus re-meeting Roxy and taking her as his second wife. I hope that the animation doesn't struggle too much with the pacing. Vol11 alone would be too little content, 11+12 is too much, but it's hard to end in the middle of the 12 without feeling incomplete.