The big problem is getting and keeping participation levels at a reasonable level. There ARE enough people still racing to provide a full grid, but right now it seems as if everyone is hyper-focused on one, maybe two cars/formats, and while they may try a series when it starts, they'll abandon it, and it will cascade into others abandoning the season as the numbers dwindle.
I'm not sure how the new Westhill has affected the community as yet, only time will tell. It feels to me, however, that the newness has worn off and people are just going to the new track when they have the time spare, instead of making the time. Of course it's nearing end of terms for schools, work is still in swing, and activity may spike up in the summer.
I look foward to some more progress on the Developer's side, I get the feeling that they are invigorated after getting a major project finally finished, so I hope that it's the kick and refresh they need to go back to full steam. I would reckon the new tyre physics and whatever else might come at that time would be a good boost possiblity to LFS.
Sadly, those who were here in the past have gotten older: More responsibilities, more activities, more choices. That old core is possibly gone forever, as cycles would allow and require. I think there will need to be a "reset" back to simpler, shorter league races to bring the new racers in. Not necessarily back to the LFSBC series, but MiniFBM/LX Challenge/TBO Challenge are all simple, easy events that can be knocked out in around 90 minutes or less, start to finsh, which is a simple time commitment that might be easier than the 2+ hours you have to spare to do LFSCART or GTWS or the other major series. Those series are also more tuned to the fun and pure racing aspect and need less direct admin involvement to run, and give people a great way to spend an hour and change without too much stress or significant thought to race well.