Well I think it is a matter of project quality.
A lot of past project are inactive and clear scam and for those is starting the delisting.
Other projects are active and tokens useful for the project and for earning generated so it is a matter of quality.
Ye I think project quality will 100% be the deciding factor. The technology is there. It has underlying value and use cases that are still yet unknown so I don't think alts will go anywhere...given then utilise the tech