Yeah that sounds like your fan side talking. In reality no one in the general public gives a shit about Shenmue or even knows what it is. There's a reason why it didn't sell millions and millions and save the dreamcast. That's why I said if they were going to fund another that was as expensive as the others then it would be a horrible and stupid move from Sony.
Fortunately for us, those reasons (yes, there's more than one actually) have nothing to do with it being Shenmue.