Neogaf has a large section of people who love to speculate on things that don't matter to them. This isn't good or bad, it just is, I don't think you're going to stop that.
Not posting here to tell you that, but I was thinking about Ubisoft and Square this morning, and how Ubisoft must be an excellently run business to often put out average to garbage titles, literally burning communities every few years [Might and Magic] but still remain profitable, where I see Square as more of a company that is all in with every development cycle trying to make the best game ever conceived and missing realistic expectations.
I'm not too worried about Square because they have plenty of money from FFXIV's extreme success from 100% failure in the MMO world, but they're really a company that seems to be about passion development and not business decisions until they hit that moment.
I know nothing about market research, nor do I care, but if I had to pick a game to sell at least 10 million units I don't see why FFXV couldn't be that one.