Qantas has been replacing their B747s at LAX with new B787-9 Dreamliners. Just last month we saw the last Qantas B747 flight between LAX and JFK; that route is now covered with the Dreamliner. There will still be Qantas B747s at LAX for a couple more months, but they are expected to disappear from the LAX scene by the end of this year.
This new Dreamliner has been on the LAX-JFK route several times recently. It's named Emily Kame Kngwarreye, in honor of the artist.
Qantas unveils special Boeing 787 Dreamliner livery
Qantas switches New York flights from 747 to Dreamliner
Qantas retires legendary Boeing 747 from iconic New York to Los Angeles route
Qantas retires another 747 to California desert