Considering the current calendar, I'd remove Bahrain, Melbourne (replacing with Adelaide) and Fuji (Suzuka back, please!)
The first three tracks are in places where F1 doesnt have any history (excuse me, but I have never seen any chinese drivers or engine suppliers in F1!!) and doesnt provide good racing, considering my point of view about the last races they had.
UK has a lot of circuits (Brands Hatch, Silverstone, Oulton Park, Mallory Park, Snetterton, Donnington Park and so on...) and they could rotate them so F1 would reach every place in UK every year. For France I'd get rid of Magny Cours and take F1 back to Paul Ricard.
A Portuguese GP could help Tiago Monteiro here, his sponsors would have more interest to support him a lot more. So I would bring back Estoril.
For the german GP I agree with the rotation between Nurby and New Hockenheim. I have to admit, the new Hockenheim is a lot more interesting than the old Hockenheim.
Indianapolis has nothing to spice up my interest and if F1 wants to stay in USA they should change the venue of the race. What are the options? I'd bring back the Mexican GP at Hermanos Rodriguez...
Spa is a classic challenging and awesome track like others (Monaco, Monza...) and should ALWAYS be in F1.
Tracks like Shanghai and Sepang could be removed to receive the new circuits that Bernie wants to put in F1 in 2010. We could bring back South Africa at Kyalami too, I remember to have seen a nice race there in 1993.
01 Adelaide AUSTRALIA
02 Sepang MALAYSIA or Kyalami SOUTH AFRICA
03 Interlagos BRAZIL
04 Estoril PORTUGAL
05 Barcelona SPAIN
06 Monte Carlo MONACO
07 Montreal CANADA
08 (Open, US GP or Mexican GP) UNITED STATES/MEXICO
09 Paul Ricard FRANCE
10 British GP Rotation ENGLAND
11 German GP Rotation GERMANY
12 Hungaroing HUNGARY
13 Istambul TURKEY
14 Monza ITALY
15 Spa Francorchamps BELGIUM
16 Shanghai CHINA
17 Suzuka JAPAN
"I'm an artist, the track is my canvas, and the car is my brush."