But if the game team ico are working happens to be the link between the two... man, I dunno. I might just have to wake up and change my trousers.
They're already linked pretty well. In fact, these games have pretty much the best prequel-sequel relationship I've ever seen. Both stand on their own brilliantly, but on deeper analysis you find that each contributes a lot to the story of the other. Unlike some games I could name...
What about it did you find dated? I just played it for the first time a couple months ago, and the only issue I had was the extremely low resolution. Even beneath that you could see it was a beautifully rendered world... it was kind of like watching a crappy internet video of a much better looking game. And that may have only been because I played it on a 46" LCD.