At first I also wanted to have new content in LFS as soon as possible, especially Rockingham as it would add a second oval to LFS.
But over time my mind changed and I think it is the new tire model that lfs really needs.
No content whatsoever would bring the racing community back to LFS (see "racing" here ... not moaning, not cruising, not drifting) for a reasonable amount of time.
But a superior tire model could give LFS the advantage to attract racers and put it back in place of number one online sim.
I really hope all the time Scawen takes in development of the tire model isn't wasted and results in something really good.
My 2 cents.