I am rather satisfied/amazed to see what 3 guys have made on their own.
While there may be people leaving and getting bored, this is natural.
I also took quite a break this summer, just for the sake of it.
There is no need to worry about player levels dropping, as it is, again, a natural thing to happen.
When the S2 becomes final, the game will obviously get a lot more coverage than it does now, whenever it may be (and I'm sure in this case, a well established community can help with advertising, reviews, video coverage, whatever).
We just have to face the fact that 3 guys working on a game is not the most efficient way of doing it, but I'm willing to wait for it, while also making brakes, not to grow tired of LFS.
And while pickup racing may have decreased in player numbers, league racing is still very active and very rewarding.