>>49966299Having alternate transformation forms is becoming a common theme for legendaries now; Black/White Kyurem, Dawn/Dusk Necrozma, Crowned Zac/Zam, Calyrex riding it's steeds, etc. and if you count forms added in later games, at least one of the main legendaries from every generation except Gen 2 now has some kind of special alternate form (Mega Mewtwo, Primal Kyogre/Groudon, Origin Dialga/Palkia and 100% Zygarde).
And just glancing at this list, there are several references to entities or concepts with 9 different forms:
>Nine is strongly associated with the Chinese dragon, a symbol of magic and power. There are nine forms of the dragon>Navaratri is a nine-day festival dedicated to the nine forms of Durga.>The Nine Worthies are nine historical, or semi-legendary figures who, in the Middle Ages, were believed to personify the ideals of chivalry.So perhaps we'll get a legendary trio with each having 2 extra forms, totalling 9 between them. Since the 9 Worthies are broken down into 3 groups of 3 and it being the least asian of the three examples above, I can imagine something that tangentially relates to the concept without being explicitly referencing them specifically.