I'd say Clos for 2nd HRT seat with Ma Qing Hua doing all Fridays.
Don't see the hype over Pic to be honest, would be surprised to see him get a drive at Marussia, let alone move up the pecking order. I can't see Petrov leaving, he's doing a decent job (although not as close to Kovalainen as I thought he might be) and brings in plenty of money.
Same for Sauber, I'm not sure why they'd bring in Alguersuari over Kobayashi. It seems like a sideways step. They could do with trying to get Glock or Kovalainen if anyone.
Senna's been so frustating, he put together a great weekend in Hungary but hasn't been able to back it up. I'm not convinced by Bottas, but maybe he's worth a go.
As for Ferrari, who knows. It will probably depend on Hamilton. If Hamilton leaves, I'd say Ferrari will sign Perez immediately to stop McLaren poaching him. If not, Ferrari can afford to keep Massa for one more year - his form has actually been pretty good recently - and then have either Perez, or if the rumours are true, Vettel, for 2014.
X (@ed24f1)