Re the other European gateways at less than daily:
DUS has remained 4 weekly despite the switch to A350 but also started after MAN, so, that's clearly the right capacity for CX.
BCN is a brand new summer seasonal route, so, that's a slightly different proposition compare to other European points (I think it's CX's only Euro seasonal)
MAD is also a new route, so, may need to wait a little longer for an increase.
We will see what happens, but MAN-HKG was for years MAN's largest unserved long haul, so, if CX keep eating into that pie, no reason it can't expand further.