LEAKED 10th Anniversary Memorial Quests (four 90++ quests for each year, each year would be a super-hard special quest that gives out a special reward):
Launch Day:
>Fuyuki: Shadow Archer
2015:
>Orleans: Vlad and d'Eon
>Septem: Waver and Alexander
>Okeanos: Heracles and Medea Lily
>London: Solomon

2016:
>E Pluribus Unum: Cu Alter and Medb
>Camelot: Mordred
>Babylonia: Gorgon
>Solomon: King of Men Goetia

2017:
>Shinjuku: Moriarty and Enigma
>Agartha: Phenex
>Shimosa: Saber of Empireo
>Salem: Circe

2018:
>Anastasia: Ivan (Section 21)
>Gotterdammerung: Sigurd and Ortlinde
>SIN:
>>Qin Liangyu
>>Mayall

2019:
>Yuga Kshetra:
>>Ashwatthaman (Section 16)
>>Mahanaga (Section 17)
>Atlantis:
>>Astraea
>>Chiron (Section 18)

2020:
>Olympus:
>>Demeter
>>Zeus
>Heian-kyo:
>>Kagekiyo
>>Douman

2021:
>Avalon le Fae:
>>Calamity of Norwich
>>Albion's Remnant
>>Demon Hound Barghest
>>Cernunnos

2022:
>Traum: Moriarty
>Nahui Mictlan Part 1:
>>U-Olga Marie
>>Beni-Enma Alter
>>Tlaloc

2023:
>Nahui Mictlan Part 2:
>>Kingprotea Alter
>>Angelic Artifacts
>>ORT Xibalba
>Paper Moon: Kali

2024:
>Id: Wild Hunt (Theodoric Alter)
>Archetype Inception:
>>Koyanskaya
>>Anki Ereshkigal
>>Moon Cancer

2025:
>Trinity Metatronius:
>>Jeanne Metatron (Section 8)
>>Caren
>>Jeanne Metatron (Section 23)
>>Lilith and Galahad