CX have begun confirming aircraft changes for LHR on the timetable as we head into the S24 programme. As suspected, there will not be 4 daily A359 services as previously indicated. The schedules, as things stand now, are:

CX251/252 77W
CX257/238 359
CX255/250 77W
CX237, 239/256 359
CX253/254 77W

I must admit that, what is surprising is to see the A359 (rather than the A35K) back at LHR, and not a 77W-only operation (yet), as I thought CX would have maintained this going forwards.