Re CX, imo the catalyst for the daily service is the availability of more A350s with their improved economics. After 4 years stuck at 4-weekly I doubt we'd now be moving up to daily quite so quickly if the 77W was still the only longhaul aircraft available in the CX fleet.
The other thing to remember is that HKG slots are at an absolute premium and CX still has other European gateways with less than daily flights (think DUS, MAD, FCO, BCN and others). So if higher demand for MAN does outstrip a daily A359 I'd expect the 77W to reappear on the route before they go beyond daily, at least until the 3rd runway is completed (and I mean at HKG, not MAN
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