I see one possible way to get an NA PS2 release of Seekers of Adoulin made, and that's through a kickstarter-like Backer process. If SE sets a minimum amount of money required for the disc to be manufactured then allows us to set money towards it, with a certain minimum level backed to get a copy (and higher levels for multiple copies and/or a UCSE version) then we can see, in dollar amounts, if it's worth it for SE to make the release or not.
Worst case, the minimum is not met, nobody loses money, we're back where we started except with proof SE was justified in not making the PS2 disc for NA. Best case, we get a (late) NA PS2 release, and SE makes more money.
Here's a straw poll to give the community team an idea of if this is worth taking to the higher ups. If you want an NA PS2 version, please fill it out:
http://strawpoll.me/14568
EDIT: If you check the "also I plan to buy multiple copies" option, please also check one of the other options to indicate how much you'd likely invest into this.
EDIT EDIT: Apparently several people who read this do not understand how a Kickstarter-type "Backer funded" business/project model work. Here's a bit from Kickstarter's own explanation of how it works:
Project creators set a funding goal and deadline. If people like a project, they can pledge money to make it happen. Funding on Kickstarter is all-or-nothing — projects must reach their funding goals to receive any money. All-or-nothing funding might seem scary, but it’s amazingly effective in creating momentum and rallying people around an idea
TL;DR : Vote in poll and/or Like this post to help convince SE to set a funding goal and deadline for would-be PS2 NA SoA buyers to back (fund) creation of a PS2 NA SoA release, and prove this is a profitable venture.