Many other older MMOs have recieved graphical overhauls over the years, and these did not interfere with their ability to release new content or balance changes. D&D online came out not that long after FFXI, and it's recieved MULTIPLE graphical overhauls, including adding directX 9 and 10 support. If SE REALLY wanted to, they could do stuff like this. The real problem here is SE not wanting to commit too much in resources to this game even though it's making money for them, and that even if they wanted to devote more resources, they feel like they can't do a whole lot because of the PS2 which they feel they need to maintain support for for some reason.