Have you asked 'em if they mind? I'll sweeten the deal by offering 'em a free copy. 
Obviously not since the idea is alien to him. In thinking about how I'd do it, if it ever became serious, yeah, you'd simply contact everyone whose labor is reflected in the project and get their thoughts, cut a deal for a % split on earnings if they're willing, or see if they're willing to waive their stake in it and gift it to ya; could be as simple as ensuring proper crediting, but if they're totally opposed, decide how much that should factor into the decision, whether to give that one person a total veto power over the idea or what, etc. In case of the dubs, they can be excluded, even possibly replaced using somebody else's work (VERY UNLIKELY THOUGH) who isn't so fanatical about copyright laws or at least pretends to be, but a lot of it has to do with unfounded fear and misinformation, etc.
But anyhow, I would have to contact Neill Corlett, David Shadoff, several other people out of respect and professionalism, but actually, I'd happily exclude Shimarisu and DeuceBag under principles of tit-for-tat - that's at least 2 people right off the bat that I can cross off and feel totally morally justified in doing so! Shimarisu was caught on eBay selling prepatched CD-Rs with original Ys IV discs to make 'em more valuable - she lived in Japan at this point and was buying lots of them up and selling them like this... If she had at least contacted me first, and not done it secretly to where a friend happened to run into an auction of hers and then told me about it, I would've waived my stake in it and said, "
Hey, that's cool, 100% for you, keep it, etc." Instead, in secret, she unilaterally decided a 100% cut for herself, even though a translated disc would not have been possible without my labor and that of others, not just hers, etc.
DeuceBag did the same thing essentially, but with a commercial, for-profit entity/corporation, XSEED! He secretly sold the Felghana script (3 others after) in 2010, 6 months of secrecy just about, and he got 100% of the credit, 100% of the profit (whatever was paid to him), was never heard from again, didn't have a single thing to say to me ever since, just playing stupid basically and projecting as if he had done all the work himself in a vacuum (
that was after 8 years of knowing him and ~5 of working together). In both cases, they effectively claimed 100% stake in the end result, even though neither of them would've had anything in their miserable hands to sell to the public, let alone to a corporation, etc. So, the point is, those two individuals can burn in hell and not only would I NOT ask for their permission, or give a damn what they thought, I wouldn't share a single penny of the earnings with them!
Everyone else on the team, as a professional, I would have to notify them and make sure they got word of it. Neill Corlett, for example, was always a professional with me, that was one thing that I noticed about him. I even once offered him $250 to hack the font for Ys IV actually, and years later he regretted not taking me up on the offer! David Shadoff is another pro as well, so out of respect and honor, I would have to let him know and see where he would stand, etc. They never did anything to me that I could ever hold against them, that's the type of people that they are! Even so, nothing comes close to what those two translators did, so I'd still have to be fair with everyone else that played a significant role in making the overall project possible. Don't wanna sound like I think I should get to screw over everybody else, etc. Those 2 cases are folks that said, "
Hey, 100% for me, thanks for your labor, for the memories, and it was nice knowing ya, bye bye!!!"
