I know there were problems getting prizes in a timely manner with the old prizes. I'm not suggesting we should go back to such large numbers of prizes as in the past. But this is a popular game and most of us are in the market for bikes and the game would grow hugely if prizes were offered.
The main things I think you could find sponsors for are:-
1. Some kind of prize for each standard race.
2. A really good prize for the season winner in the standard game.
3. Bikes for grand tour standard game winners.
I find it difficult to believe there isn't a manufacturer or two who wouldn't like to have their name linked to a popular and established game that would expose their brand for the entire season repeatedly to the market.