User blog comment:B214/Volume 22 spoilers/@comment-202.67.40.227-20161030103910/@comment-30048084-20161031162917

I wish Ishibumi could maybe write a short story with this stuff included

Considering the structure of the Underworld I doubt Ise will recieve nobility just because he became a high-class devil. The Great King faction would never allow a non devil to possess nobility unless something like Ise and Rias were to happen.

The reason I say non devil is because Zekram Bael who remains in truth the leader of the faction does not recognise anything that is not recorded in the bible and 72 pillars/Extra demons as well I guess as devils and only "devils" can be nobles.

When it comes to ultimate-class devils I think the whole book is thrown out the window because ultimate-class devils that come from the masses of reincarnated devils are a very rare breed it seems. It looks like a devil can have the power of an ultimate-class but recieving the physical title is difficult.

My question is whether Ise will obtain his own symbol for his spell circles or if one has to be an ultimate-class devil to recieve that privilege or you must possess nobility to have a symbol. It seems kind of strange to me that Ise becomes independent but will still be a "Gremory" in that regard.