It wasn't too long ago that the Philadelphia family had only a dozen active members on the street. The point being, just because it looks like the end, and there's always somebody proclaiming that this is "it," it's not necessarily the case.

In the long term, you can see the writing on the wall with the smaller remaining families. However, it doesn't take a lot of guys to maintain the local bread and butter rackets of gambling, loansharking, and extortion. The complete "collapse" of the family is not imminent yet.