The same is applicable to collaborations like the Final Fantasy XIV cooperation with Odin (which still exists as far as I know) where I do not understand how much of Square Enix is involved in that for Sega to PSO2 Meseta have the ability to upgrade assets . If it was purely just Phantasy Star-related items (like character outfits, cameos from different games, or other Sega-related possessions ) I could imagine this probably would have been achieved, or would be done. But in the Global version we don't have the presence of Cougar NX so I do not know if there are other complications seeing Sega's own properties that might also contribute to not upgrading everything they can within reason.

I can imagine that likely out there we'll still see someone wearing those old cooperation things even if they are not awakened to the same criteria as new makeup in an identical way and that there definitely would have been outrage when it was made unusable or obsolete. Collabs that have had their cosmetics removed nevertheless have their assets exist on the game so those will likely still be accessible for jp players.

Only improvements we will probably see is the new engine improving shadows, shadows, colors, particle effects and casting them against the outfits. You can take a look how exactly applying better shadows and colours can enhance old equipment by assessing ReShade screenshots. Collabs who have experienced their makeup removed still have their resources exist on the sport so those will probably still be accessible for jp players. Simply improvements we'll probably see is the new engine enhancing shadows, shadows, colors, particle effects and projecting them from the drapes. You may take a look how just implementing better shadows and colours can improve older equipment by assessing ReShade screenshots.

Not actually play PSO2SEA however I did play with a great deal of matches in SEA release. Maintaining service by means of a localizer (distributor), however, backslash of the distributor have the ability to modify the game itself or ramble afar from the initial maintaining plan from mom company (in this instance SEGA). Many games come and go just as a result of bad maintaining and being manipulated. With Sream being a thing since quite a while (actually steam gradually became an essential thing in around PSO2SEA release, the rise of MOBA such as Dota2 and LoL was something ), many problems of localizer were turned out, such as manipulating value (PSO2, when enemy coped more dmg and suppose to be) to unfair monetization (several, including Garena in exchanging RP speed in local currencies, and for PSO2 was costume items and affix outfit). All of it are a sort of managing and maintening the sport. Frankly, not much match stayed within 5-7 years with such lack of cheap Phantasy Star Online 2 Meseta honesty and non transparency of their localizers, and their strategy then (at least in my state ) was kind of instant-ramen of buying permit, utilizing it in few years for quick buck then losing it. There are some poblishers/localizers did really excellent job, especially Mihoyo or YoStar, but that's for cellular market and that is sort of afterwards with higher standard when gamers started caring about such and transparency.