I'm not aware what the rules of the real F3.5 series will be for next year, but last year they were 45 minutes per race, if I would change it to 2x tyrewear it would probably make it less of a link with real-life strategy.
And this being a 2009 F3.5 car, I'm not sure how the tyres of 2009 would compare to the tyrewear of last year.
If they had 1 1/2 half hour races in 2009 let me know I couldn't find info on that, than 2x tyre wear would make it more a link to real-life strategy.
Probably you are hinting to the mandatory pitstops? That is something I might introduce in some races, and will announce that beforehand if so, but having no mandatory pitstops might also lead to interesting strategies, and that is how we will start. This is something I will asses along the way, to see what gives the best results in exciting races.
If along the season I think that 2x tyrewear could make the racing more interesting, there is a possibility that I will introduce it along the way. If there will be changes mid-way they will be announced a couple of weeks before the change.