But how much of them will stay? Because the first thing they will say is "We want more cars/real life cars and more tracks", frequent updates. Bringing it to Steam with this status will do NOTHING, as people will go away because no updates and no more content, even if you try to convince them. People don't know what they want, even if you give them what they want, they will still complain. Also what would happen to those who already payed for LFS licenses? They would need to buy it again? Idk if most of users now would agree re-paying LFS if it comes to Steam. Games that aren't frequently updated on Steam just die e.g. Spintires to put a clear example, its literally even more dead than LFS -altho it was because of a discussion between Oovee and Pavel (the creator of ST)-.
LFS first needs the new tyre physics, the VWS released and more content added, and then from there either add content via devs and/or Mod Support implementation.
I'd love to see Racing back to LFS, which will be hard to recover. As a kid I used to play and love Gran Turismo 2 -played it via Emurayden Emulator back on these days-, and in 2010 I joined LFS and since then I stayed here, loyal, waiting that one day I wake up, I enter here and see a thread announcing that Tyre Physics and VWS update is released. LFS is one of the really few games that got me hooked to it and never left it abandoned, max I'd stay away 1-2months but I always come back to it, it has something -apart from being a car/racing casual enthusiast- that always gets me.