STR will likely suffer, as the RB5 chassis does not excel in hot conditions as much as it does in colder ones. It eats the tires too much. I am hoping for hot conditions, as cold conditions in summer are just not normal and not representative. Hot conditions are also much tougher on drivers and car's reliability. It makes for better racing in my opinion. Plus, if Bourdais is replaced with Alguersuari, then in his first race he will likely stumble.
Brawn: Massive update, simmilar to RBR @ Silverstone
Red Bull: New Chassis for Webber??? He may not want a new one if the 02 is now a winner.
Toyota: Need a RBR style update.
Ferrari: General updates.
Williams: Need a massive update, again simmilar to RBR.
McLaren: Hekki to get the Hamilton update.
BMW Sauber: Massive philosiphy overhaul and massive update needed.
STR-Ferrari: Red Bull RB5 updates on the way, new DDD and front end.
Force India: Small updates, just refining the overall package.
Bourdais to be replaced by Algusalari
Piquet to be replaced by Grosjean
Drivers on the borderline: Nakajimma, Barrichello, Fisichella and both Toyota drivers.
Toyota drivers on the "borderline"? Why would you say that? It makes no sense.
I'm not so sure Brawn and Williams have the resources for a massive Red Bull style update. Button said they would have a step in Hungary, but it did not sound like anything dramatic. There has been no word from Brawn about a massive update. Yes they need one, but it seems like their lack of resources compared to the huge teams is starting to hurt them in the development race.
Toyota DOES have the resources for a huge update, and they NEED a big update, at least as big as the one they had in Turkey, but preferably bigger.
Word is that Ferrari is abandoning development of the F60 and focusing on next year because they are alarmed at how fast the competition is developing. It's some twisted irony to see Ferrari throwing up their hands in the air and giving up mid-season. Only problem is, Ferrari won't have much of an advantage as next year's cars are quite similar to this year's, and it makes sense to keep pushing development to the very last race, as track time can always be viewed as sort of testing/preparation for next season in a way.
I also doubt BMW will have a big update in Hungary, after their fairly large update in Germany, which failed to move them up the grid.
Renault I feel is similar to Williams and Brawn. With so much development potential available on this year's cars due to the new rules, I doubt Renault can keep up with the big teams like last year.