An industry expert, or really just about anyone with a vague understanding of how Team ICO has functioned, would know that not only are they an extremely small team, many of them have been on other projects for some of that time.Really? I'm going to have to act like an industry expert before you take it seriously?
Think of how much budgets skyrocketed with the last gen of consoles(PS3, Xbox 360, etc.), which sunk some companies while others moved on to PSN/XBLA, iOS and handheld platforms. Put 8 years of that much money being spent with nothing to show for it. And assuming(a big assumption btw) that they end up moving that to the PS4, that's just even larger sums of money being thrown at a project that's been in development for 8 years, where they already fired the head of the team, for a series that isn't that much of a seller, and to boot not much has been shown of the game.
It's absolutely terrible when you look at it business wise. It could sell 1 mil, maybe 2 if you're being extremely generous. It's best at this point to cut your losses and move on. Team Ico doesn't look good at all, to any company with that track record over the past decade. I imagine if Sony goes ahead and does release it, it would be to make what little money they can out of it, which won't be much.
Game budgets are primarily based on the burn-rate of the team, the team is small, and has gotten smaller in recent years in fact, it's wholly possible the game is still under $35m, which is only a million units for a first party, once you remove the profit from the Ico/SotC Collection, they're probably nearing the black before they sell a unit.