If he put in an official transfer request, I'd be pissed off. He would effectively be driving his price down.
If he says, I love arsenal blah blah, four more years blah blah....it would be bullshit, and everyone knows it.
Like I said. I don't think he's overly fussed. If he has to stay at Arsenal, he's happy to do so (though after the guff from last season, I think he's want some major assurances in the form of quality additions to the squad and some ambition from the club).
He knows he's Barca bound one day....but if he has another couple of years with us, it's not going to worry him.
He will always be professional on the pitch, and give his all.
The point really, is that Arsenal need to show some ambition. If we're not prepared to show ambition, then we're not worthy of a player of his claibre regardless.