If I could, I'd bet that no LSP will eventually survive under scale due to liquidity requirements alone.
Unfortunately, it's hard to set a timeline for each one because some are backed by generous VC, others don't have that many users.
Discussion
An obvious liquidity issue for an LSP is that it needs to come up with some chain funds for every new user, and they can't even take these funds from their channels because their users don't route.
And then stuff like force-closes, abandoned channels, rarely used channels and so on.
Once a subsidy is gone LSP is going to become an incredibly tough business model, something I'd personally never want to do in my life, I'd better open a strip club.
😂👍