It's safe to assume that Ferrari, and therefore Raikkonen and Massa, will be the team to beat next season.
But, who will be up there challenging?
Besides BMW, we currently have no idea who will be driving for who next year, and whether or not McLaren and Renault will produce competitive cars, and how fast BMW will actually be.
Could Williams and/or Red Bull make a big step up and challenge for podiums?
Will Toyota continue to drive in reverse gear, and move even further backwards on the grid?
Will Toro Rosso and Super Aguri continue to improve?
Will Prodrive make it to the grid?
Will Spyker really be renamed Force One India? 
and
What the hell sort of a car will Honda produce next year?
Your thoughts, people.
I'm not sure about Ferrari's dominance next year. They will be strong for sure, but since they haven't been absolutely dominant this season (some of their results did come out of misfortune of the others) I don't think they'll have much better starting point (in terms of developing next season's car) than the others. If nothing else, they do have to improve reliability...
McLaren, cat in the bag. They can bounce back or they can sink. I don't really believe whole team is supporting LH, there has to be FA side as well, albeit much smaller... but enough to create rift within the team. Plus, many fresh thing might emerge from their quarters now that season is finished that might actually spread the rift... or they really might leave everything behind and focus on next season, building on this season's car and being as competitive in 2008.
I don't see Williams growing much - unfortunately - but I would expect AN's influence in designing Red Bull's car to start showing... more. Will it be enough for podium, time will tell; but I'm sure they will grow in years to come.
BMW should be stronger. Toyota - I don't expect anything from them, but that is based on their current and previous performance. They have enough money to buy the best staff available (or even to make unavailable staff available) and they have Japanese's determination to succeed... so they might start improving at last.
Honda will be better. They can't do worst.
Back-griders... will stay there.
Renault? They might come back, in fact I hope they will. Having Ferrari, McLaren (hopefully), Renault and BMW capable of winning races, with Red Bull, Williams, Honda, hopefully Toyota capable of snatching podium once in a while - still not winning but at least capable of causing troubles for winning teams - would make a good season.
You can have it in any colour - as long as it's black. Or red. Or blue. Or green. Or white. Or navy blue. Or...