British Airways has called time on it's 747 fleet withrawing all jumbos from service as of today rather than waiting for 2024 are originally planned.
https://www.thestar.com/news/world/...ish-airways-bids-farewell-to-boeing-747s.html
BA is also calling on the U.K government to introduce a scrappage plan to encourage airlines to get rid of older aircraft and replacement with more fuel efficient models but that's basically another tax payer bailout for the airline industry
Though the airlines probably won't be getting as much scrap value out of the old aircraft. Normally they're parted out than the airframe is broken up and recycled. Engines would got for millions and landing gear would also feature a nice price but between the sudden influx of surplus aircraft and the models going out of service those prices will be reduced.
Hope Rolls Royce had made it's money back on the Trent 900s on the A380s as they are going to start coming back and there's no second hand market for those (A380 owners leased the engines with RR taking responsibly for upgrades etc).