I think a move to Spurs would have been good for him. They're struggling for a proper centre forward at the moment, what with Adebayor sulking as usual about something.
Juventus have just signed Llorente, otherwise i would agree that that would be a good destination for him too.
I think even if Oscar falls out of favour at Chelsea, he's secured a place in the squad for 2014 just through his Champions League, and European experience.
Players need the experience from playing against different kinds of opponent, the types of which they might come up against in the world cup.