Unfortunately, it appears SE has already made the decision to not release Adoulin for the PS2 outside of JP. Probly due to the results of the poll they took last year.
Some informal user attempts at collecting the data have shown the breakdown at best to be around the 1/6 to 1/8 active clients being on the PS2 outside of JP installations....in some cases even less. So, if it is indeed that high of a non PS2 distribution in NA (above 80% on PC/XB360 clients), that may very well be why they have decided not to release new content to that region's PS2's.
