I would be shocked if we sell John O'Shea, especially for a bargain deal like that. Where else could we possibly find a player that's his equal in combinatin of skill, versatility and experience, and at the same time willing to accept a role as a squad player? Even calling him that is stretching it, as he's played 62, 21 and 38 matches the past three seasons, and I'm sure you all remember crying out for him when he was injured in 09/10.
The only reason I could possibly imagine we would sell him is if he's requested it himself, but I'm having a hard time seeing why he would. If he wants to go though, then I'll of course be the first to wish him the best of luck! It's certainly his prerogative after all he's done for the team and the club.
The other two I was more or less expecting to move on, so I'm not as suprised by that.