There will always be people disappointed that x track didn't make it. With limitless funds and limitless time, sure, the devs could cover every track that people want. The key is having tracks that really do appeal to a wide audience, not just a select few. I reckon they've come up trumps with the list, especially knowing that there are more to come via DLC
The complete list of new circuits (but not their variants) is as follows :-
Autodromo Internacional do Algarve
Hockenheimring Rallycross
Knockhill Racing Circuit
Knockhill Rallycross
Lånkebanen Rallycross
Le Mans Karting International
Rallycross of Loheac
Lydden Hill
Mercedes-Benz Driving Events Ice Track
Autodromo Nazionale Monza Historic
Red Bull Ring
Sampala Ice Circuit
Circuit de Spa-Francorchamps Historic
Wildcrest Rallycross
Circuit of the Americas
Daytona International Speedway
Daytona Rallycross
DirtFish
Indianapolis Motor Speedway
Long Beach Street Circuit
Texas Motor Speedway
Fuji
Sportsland Sugo
I count 13 completely tarmac'd tracks (+ variants), 7 rallycross, 2 ice circuits and 1 karting. Game on