Waiting until then because I'm hoping for a "PfCO light"
That's a reasonable hope. At the moment and also under the new rules to take effect mid year we have a class of pilot called "Excluded Recreational Pilot" (ERPA) which is essentially for people who are primarily hobbyists but might want to do the occasional job "for commercial operations" as it's phrased in the U.K. and as "for commercial interest" can be such a nebulous concept at times it's a good cover to have.
At the moment to fly as Excluded requires no formal certification, under the new regime mid year every class will require a sliding scale of certification. A recreational pilot (RPA) will need to do online training and testing of the most basic kind totaling about 10 minutes. An ERPA will need to show a little more, their process being again online and taking about 30 minutes of investment in time and testing. We won't go into RePL other than to say it costs thousands, requires a large amount of time and formalised theoretical and practical flying assessment.
Then and now it (ERPA) entitles you to operate commercially within the Standard Operating Copnditions with an R.P.A.S. under 2Kg. Commercial operation within controlled airspace is not allowed for ERPA. You can fly in controlled airspace here even as a Recreational pilot as long as you follow the SOCs but need an RePL to do it commercially. Insurance for ERPA is not mandated but you'd be nuts not to have it.
It's probably some ways off, but I'd also like to see some international equivalency for these
Now do not take this as a definitive statement but, obviously, being a commercial operator I've been watching closely the formulation of the new rules coming into effect here mid year and providing submissions. I will say that there is a section in the legislation that cover international pilots both as tourists but also in the terms of aircraft registration and the way I read it it does suggest that some sort of equivalency is assumed and may even be underway behind the scenes. It'll probably be a thing that requires countries to be a signatory to some sort of agreement you would assume.
The similarities between the certifications regimes slowly forming in the U.S., Canada, the U.K. and Australia at the very least make it a possibility. Also I did note that while the original word was that to fly in Canada you would need to be a citizen the draft legislation there allows for immigration officers to ask for your R.P.A.S. accreditation on entering the country which hints at that possibility.
As I said, not established fact but more informed speculation.
Regards
Ari