Well, the thing is that LFS is pretty much a 3-man project, and when Scawen started working on the new tire physics, he bit more then he could chew, tire physics are really complicated, and unless he is some kind of super genious, it's not that simple to do all by himself.
I personally would like to see some updates, even if they're not scirocco, s3 or tire physics related, at the moment I see it like this:"Okay guys, lets not relase anything before I'm done with tire physics".
The sad truth is that this community is pretty much dead, ofcourse there are stil some diehard fans, but it's not what it's used to be, yes some people have outgrown LFS, but I've just got tired with this old game(I bet I'm not the only one).
The fact is, that people would probably be happier if no Rockingham or Scirocco was announced, because those just made them believe in something that won't be.
To me, S3 just seems like a scam to keep this community alive(it barely is).