The B777 - 9 would have been very well positioned to replace the A380 and B747 if COVID had not occurred. Now these types are being retired and there is currently no need for a similarly sized aircraft for the next few years. The B777 - 9 will have its time, but that will be in the middle to next half of this decade.
Get used to A320/1s being operated to the limit of their range with B787s on the longer runs and A350s on premium routes for the foreseeable future.