I don't see it. If various nation states can't agree amongst themselves on how to regulate other issues like drugs, abortion, euthanasia, gun controls or any other 'political football' you care to name,
Unfortunately all these mentioned topics boarder around the politics of an individual country and what it's citizens believe is good for them...and the fact that we all have different beliefs and cultures as a people we can never agree on these topics....
how will they ever agree on how to regulate crypto?
Unlike the guns, drugs etc crypto does not boarder much on the politics as it exists in no man's land though we pretend this beast can be tamed.
Particularly considering how they generally understand far less about our ecosystem than they do those other topics. They won't find any unified agreement, because they'll all be trying to pursue their own agendas, just as they always do.
I suppose this task can't be left to the politicians alone for obvious reasons , it would need players that understand the technology already, talk about the miners, exchanges, crypto influencers, law agencies etc its a longshot but still cryptos success could require regulation to give it a backbone.
In the US alone, even the individual states can't agree on what regulation should look like. So anything global sounds a little far-fetched in my mind.
Maybe global is far fetched, but a benchmark for a start should do.