I would imagine a large complication to that Phantasy Star Online 2 Meseta entails a lot of the cosmetics from the Japanese side of things which were exclusive to collaborations, promotional events, and events that no longer exist. The example I can think of is the Monster Hunter Frontier Z collaboration where I could envision the clothes and weapons could unquestionably be given a visual upgrade alongside everything else but that I don’t exactly understand how the licensing or how the legal side of this cooperation functions where I’d wish it was as easy as Sega going through and upgrading the assets but I do not understand about how much of Capcom is involved in this process.

The same applies to collaborations such as the Final Fantasy XIV collaboration with Odin (which still exists as far as I know) where I don’t understand just how much of Square Enix is involved in that for Sega to be able to update assets there. If it was only just Phantasy Star-related things (like character outfits, cameos from other games, or alternative Sega-related possessions ) I could envision this probably would have been achieved, or would be carried out. But in the worldwide version we already don’t have the existence of Cougar NX so that I don’t exactly know if there are additional complications regarding Sega’s own properties that might also contribute not to updating everything they can within reason.

I can imagine that probably out there we’ll still see somebody wearing those old collaboration things even when they aren’t awakened to the very same standards as new cosmetics in a similar manner and that PSO2 Meseta for sale there would have been outrage if it had been made obsolete or unusable. Collabs that have had their makeup removed nevertheless have their resources exist on the game so those will likely still be available for jp players.