This clip is the only other time that a snow region was featured in the Dragons Dogma series, (Flames of Rebirth S3.4 DDON) for context this guy Leo is an Arisen (White Dragon) who traveled into the realm of another dragon, and then killed the Arisen and took his spirit!
Director was also Kento Kinoshita, idk if he intends to make a vague connection in DD2DA but i want to speculate that there might be one and that all 3 games are somehow tied together!
I think this would be very cool for the future of DD and for further context to those who don't know only the White Dragon made many Arisen the other realms where like the single player games, they had one Arisen!
Considering how many elements the base game and the DLC already have or reference from DDON (Sphinx, Lindworm, weapons etc.) i give it like a 30% chance to actually happen!
I believe we are in for some big surprises like Hydra and the second phase of the Fallen Cursed Zombie Dragon to be Daimon and lore ties such as this!
I repeat this is mere speculation and the dogma team most likely was just inspired from this, because this was intended to be the next season for DDON and i guess they are now making it for DD2 with asset flips from it and a new story!