The new tyre physics will be great, I'm sure about that. But don't forget that the people who play LFS now, already like the game as it is. They like the current tyre physics, the cars and the tracks.
So, after so many years, it would be better to release a track in the meantime. Something new to keep the people motivated to race. This game is great and it will be even better when the new tyre physics are here, but I think new content is needed to keep people to play the game.
Btw, happy new year to all of you!