The dictionary defines a crisis as ” the decisive moment “. The shidduch “crisis” is not a crisis. It is the result of systemic structural issues in the community’s current marriage customs and the way they bump up against economics and other lifestyle choices. It isn’t something which just occurred even though it may only have recently been acknowledged. It is not something which will go away anytime soon, not unless we change the way we do a number of things. A few rabbinical decrees will not change the underlying economics, human nature or any of the other root causes.
So expect to hear about it for decades to come. It will resolve itself, but that will require significant changes in how we do things, far beyond the scope of this discussion.