Surprised to see CSX being reinstated by CX itself, not UO (guess using UO will not be pleasant for transit pax), and this early (Nov 4th) as well. It was basically the former KA slots.
HKG–CSX: CX968 0915–1050 (246); CX920 1930–2105 (1357) | CSX–HKG: CX927 1305–1445 (246); CX943 2210–2350 (1357)
Source: Cathay Instagram and "MarketScreener"

CSX route operated by 32Q if anyone was wondering

I've always thought TPE, KHH, CAN, XMN, FOC, PEK, PVG, BKK, SIN, MNL were the "hinterland" routes, as in any long haul flights could connect to them regardless of the time of the day.

CSX, WUH, CGO were always a bit of an inshallah. But looks like there will be a few connection opportunities with this reinstated service too.

This is the route that I used when I was still studying abroad; at that time always convenient to get to one of the JFK/EWR services. I had fond memories with it. I agree that the 1357 return service is too late for many EU/US-bound services: I would hope it could be a little earlier.

This would be very inconvenient for HKG-LAS and HKG-IAH passengers as it would be much easier to connect through SFO (or TPE/NRT in the case of the latter), not to mention that HKG-YYC-LAS is a bit of a detour.
Stopping in Canada isn't that simple as well because Canada doesn't have sterile transit. Back in the day, HKG-YVR-JFK pax couldn't even clear US immigration and customs in YVR, and YVR is better designed for this sort of thing than YYC (which doesn't have a segregated international departures section) to begin with. The 5th freedom segment likely wouldn't be very profitable either: YYC-IAH is not a large point-to-point market and CX would have much higher costs than WS and even UA; YYC-LAS is a bit larger (at least right now) but again CX wouldn't be particularly competitive with higher costs and limited frequencies compared to WS. It's also hard to see YYC-LAS/IAH faring better than YVR-JFK when the better product matters even less on a shorter flight. (Also, I can't see HKG-YYC justifying 6 frequencies a week.)

Other than CX, FAA will continue to ban PRC-flagged carriers to overfly Eastern Russia (or is it more compliant now to say Russian East?) between China and US https://www.facebook.com/share/p/1CQhwMa8tw/

Rumours on local news are that CX intends to upgrade URC to a daily flight

well CX's advantage would only get even bigger at this point. they have a huge east coast monopoly already

CX needs planes urgently.

Or the HK government should provide full access to ME3 to start 5th freedom flights from HK since they have better fleet planning.

Why would HK govt do this? Surely they would lock out other carriers to keep flight prices high so that CX can remain profitable.

A better question is whether SQ can reinstate SQ1/2 SIN-HKG-SFO route.....

SQ is also somewhat short of planes and the high-yielding part of HK's O/D market has cratered - I would be surprised if they did.

cause CX incompetence has destroyed the Aviation business in HK.

Time to open it right up so more competent players can establish themselves and return HKG back to what it was.

SQ is still a much larger airline than it was pre covid.
they not doing badly at all.
CX is yet to overtake pre covid levels

well but that isn't the point and you're missing the point - SQ might be larger than pre-Covid but it still doesn't have the capacity to operate everything it would like to, and accordingly, long-haul fifth freedoms have been a casualty to this.

Oh...someone is re-defining 'much larger'.
https://cimg6.ibsrv.net/gimg/www.fly...32a633bc95.jpg
https://cimg7.ibsrv.net/gimg/www.fly...79ab3be7bd.jpg