I am very new here and a total n00b when it comes to BO predictions (and I am 35+ as you can guess from my usage of the word n00b), but am I the only one who thinks Avatar 2 will not do any bonkers numbers? Now, if the movie is really good and it creates an absolute must watch experience in the cinemas, then sure, I can see Avatar 3 breaking all kinds of records. But given the time that has passed since Avatar 1, I feel 2 has to lay some of the foundation again for its successors to reap the rewards.
The same with the MCU and whatever the next Avengers movie is. I feel Avengers 5 has to act as a set up and be so good that Avengers 6 can then look at toppling BO records.
And for all we know, some new movie can come in and totally crush it as well but I still feel we are now heading into the "sequels set all the records" territory given how front-loaded and competitive the entertainment market has been getting.