On the subject of the Bozja story's conclusion...
Misija is now on my "needs to die" list for all that Mikoto bullying.
I feel she's liable to be dealt with in the next chapter considering that Menenius seems to still view her as something expendable in spite of the privileges she's been given, and Noah has yet to get directly involved in this mess, which implies he might have bigger plans then simply summoning a primal.
I assume she's likely going to use the blade to perform an incarnate summoning once the time comes...though who knows how that's going to work out with an artificial Echo, considering the side effects Fordola is suffering from. Zenos was never normal to begin with which I assume is why he hasn't had any issues.

Originally Posted by
JeanneOrnitier
I also suspect Misija is her descendant.
The datafile on her actually confirms that that's the case.