059 added all the exalt-only effects and sanctuary by himself, and was prepared to create his own xmls and assets for the O3 release but the legit client swf already came with them to his surprise.
sure it is a shitton of effort but i wouldnt be surprised if he keeps releasing a flash client past the 23rd just as a proof of concept.
problem is, not knowing what exactly caused the bans. i still think it was people using the swf loading into O3s. exe into O3 didnt get me banned. cannot say anything on the exalt hack, do not really like it.