User blog comment:Crimson and Darkness/Volume 24 discussion blog/@comment-2601:8C:601:5692:E4E8:F6C5:ACEF:FADE-20171118032646

Okay, some interesting things that I've noted from the Jap wiki and more:

Issei is not only being recommended as an 8th maou with the name "Satan", Sirzech's has recommended that he inherit the moniker "Crimson Satan" (though the kanji for Issei are 真紅の魔王 instead of Sirzech's 紅髪の魔王)

There's an attack called "Nyūtron Beam Cannon" [超乳波動砲（にゅうトロン・ビーム・キャノン）] added to Issei's abilities that utilizes breast energy...

Rias's new collaboration technique with Gaspar is called "Forbidden Invade Balor the Princess"

エクスカリバーの鞘, which was TL'd as "Excalibur's sheath" CAN alternately be TL'd as "Scabbard of Excalibur" (and probably should be)

The Mistilteinn that Rossweisse receives is a wand/staff [ミストルティンの杖]

Not related to Vol. 24, but if no one has noticed this, Lind's name seems to come from the mythological Siegfried's mother Sieglind

Clarifying Kuroka's backstory a bit, she choose to become the servant of a High-class Devil from the branch family of the House of Naberius [ナベリウス家分家] in order to raise Koneko. Her master happens to be a subordinate to the House of Nebiros [ナベリウス家], the Extra Demon house whom her father was a researcher for. If anyone is thinking Nebiros is the branch family, that's seems to be a mistake.

The mother of Kuroka and Shirone is named Fujimai [藤舞（ふじまい）]. She excelled at senjutsu but was quite peace-minded.

Team "Black Satan of Darkness Dragon King" includes: Baalberith [バルベリス] (No.61616), Verine/Verinet/Veline [ヴェリネ] (No.36402), Sonneillon [ソネイロン] (No.14784), and Gresil [グレシル] (No.50019). NOTE: I found a 魔王“ヴェリネ” that has something to do with Aquarian Age, but I'm not sure of the name TL.

Orcus is from the Moderate Faction, Thanatos is from the Militant Faction. (Just restating this). Pluto II seems to be closer to Orcus than to Hades.

AND FROM SLASHDOG FOR ANYONE INTERESTED

David Sallo, a mid-30 Italian Priest [神父] and Vatican agent who wields the holy sword Galantine who is dispatched with his 13-year-old disciple, Fried Sellzan, in order to investigate the conflict between Grigori and the Wizards of Oz. NOTE: I personally will be using "Fried" instead of "Freed" since it comes from "Siegfried", same as "Lind" comes from "Sieglind".

Nephilim [堕ちてきた者たち（ネフィリム）], a "place" controlled by Grigori that manages the young boys and girls who are Sacred Gear wielders. Ikuse & Co. will join it in volume 2. Kanji TL's as "Those who have fallen"