Speculations on whats the general story there based on what has already happened in the previous Volumes that havent been discussed.
Given that the last 2 volumes were about Demiurge's plan, I suspect we'll get Albedo's plan this time, which is to conquer Re-Estize Kingdom.
From what we know, her plan involves using lower class nobles and that idiot Phillip to create infighting between the factions in order to create a casus belli for the SK to invade.
This is a very low chance, but I find it interesting in the possibility that the Kingdom surrender's and urges the SK to take them in-in subservience after the kingdom do their best as a whole (king, nobles, factions, idiot factions) to prepare for and by the idea of an invasion by the SK, but the idiot's faction learn about what happened in the Holy Kingdom and the Dragon citizens and inform the other factions and king about the Ainz power.
I also see that but mines more expedited. I mean yeah the Kingdom will be subservient to the SK. Afterall, next to SlaineT, the Holy Kingdom is probably the strongest human kingdom and their entire kingdom is set upon being against the undead. Seeing that powerful country be subservient to the SK despite their fundamental stand in life, can make one weak in their knees, especially since they had a taste of Ainz's might in the past. That being said, they'd probably give up at the slightest hint of a civil war.
As for me, I'd like to think that 14 would be about Albedo's Super Team encountering the slaine theocracy.
I ment Re-estize kingdom (RK) sorry. If I had to put the order of conquest it would be RK then HK and finally ST. How RK will be conquered by Albedo I assume by information that pressure the RK/ the king. Information about the RK weaknesses and how the SK can help them (this would prove that the SK is well informed and has the power to protect other nations), and by playing the traditional games that noble's play assuming chest and informing them about howbimportant tactics are (this would implie to the RK that the SK can predict their actions which would bring fear), and also by informing the RK how well the Empire is doing under their care/government (shows they don't mean harm if you join them) and finally by informing them about their new citizens like the dwarves and dragons and how Ainz did it which would lead to the question "Can yhe SK help us with food and can the RK be friends with the SK?" To lead to the idea of a treaty of friendship like with the dwarves but later valentary subjection.
Volume 14 is probably going to be either a continuation off from previous volume with the Roble Holy Kingdom descending into civil war (Neia's occult) or something else entirely. I heard from Maruyama's tweet that he is going to make a volume about the facility training place for adventurers in the Sorcerer Kingdom + Momon and Nabe.
There are many things Maruyama hasn't touched on and many things he has just introduced. Volume 14 will most likely talk about the elf country, the Sorcerer Kingdom's Adventurer's Guild, Go Gin, the Dragon Kingdom, Albedo's Intelligence Squad, Albedo's plan for the Re-Estize Kingdom, Platinum Dragon Lord, probably something about Gargantua gaining sentience, the Beast Kingdom, a talk between the members of the Black Scripture, and an intermission involving Deep Darkness Dragon Lord.
What do you think?