It looks like SFO is going 77W all the way till the end of March, and most of the time with the exception of 892/893 is a 77K. After the end of March, it reverts back to an A359. Hopefully that's a typo for now. 870/879 for sure are using the 77K, which I have flown on that route and is always packed.

LAX on the other hand is continuing with the 77W on one of their flights only.

YVR we haven't seen any changes on that; the former 77W routes have always been SFO, LAX (still can be), YVR, YYZ, and JFK (sometimes).

There is a possibility I may be flying this Spring to BLR for a relative's wedding and may take CX. Hopefully it'll be a 77W, because I flew the A359 on SQ about a month ago and the comfort is a little more compromised than the 77W's (10-abreast I get is bad, but not as bad as the A359).

Also, read an article about the discontinued routes and thankfully MAA isn't one of them, so I'm optimistic in due time, hopefully Summer or Fall it will come back; flights to MAA have always been packed on CX (they have used the 77K).