Recently was revealed a new Digimon that is the Mega form (Ultimate) of Zubamon! His name is Durandamon. For those who do not know "Durandal" is the name of a Legendary Sword of Mythology, and that is precisely what Zubamon and his evolutionary line represent "A Powerful Weapon".
For those who do not know there is a group called "Vortex Warriors" that exists in a parallel Digital World called "Witchelny" from where many Digimon came! Wizardmon, Witchmon, MedievalDukemon and etc.
The Vortex Warriors are a kind of "Royal Knights" that exist in this Parallel World. And the first and only Digimon we know of this group is MedievalDukemon. Precisely one of his characteristics is to have a Weapon created with the magic power of the Wind. The Medieval Duke has a Green Emblem on its Chest which represents the SAME COLOR of the Witchelny Magical World Wind Clan.
Where I want to go:
Durandamon is a Legendary Weapon Digimon. In addition he has a Blue (SAME COLOR of the Witchelny Magical World Water Clan) badge on its Chest with a symbol in the middle that closely resembles what MedievalDukemon carries.
My theory is that Durandamon is another member of the Vortex Warriors, literally the first member we've met in 14 years.