I'll miss the excuse to cuss out my PS2 and POL for deciding that at the 97% mark of stage 3 of a 4 hour update it decides to go *POOF!* i know we have all felt that pain... haw many of you have felt the following
*POL has now gotten aggro from <insert your name here> a level 100 HNM that's enraged!*
Even if there was a PlayOnline(hypothetically speaking), it's doubtful the update system would be even remotely close to what we have today.
I remember reading an interview with the dev who developed the update system that is in use for FFXI. He spoke about how it made the most sense back when the game was being developed(bit torrent was in it's infancy back then) and that if he had the chance to rework the update system for the game that he'd be greatly in favor of a torrent style update system.