I know it's tough predicting box office results without actually having seen the movies in question, but there's quite a few potential blockbusters coming out this year. Obviously, the main contender is Avengers: Endgame. Avengers: Infinity War is 1 of 4 movies to ever gross over $2B worldwide. I just read an article stating that Endgame has outsold Infinity War 5:1 during its first week of presales
. If the movie lives up to the hype, it has a good shot at topping Avatar's $2.788B.
Star Wars: The Force Awakens is also a member of the $2B club. However, The Last Jedi was such a divisive movie, I don't know that Episode IX (despite being the finale of the trilogy) can mount a serious challenge anymore. J.J. Abrams certainly has his work cut out for him.
The first full trailer for The Lion King remake dropped recently and I thought it looked incredible. The original movie was the box office king in 1994. I'm unsure if it has a realistic shot at the record, but $2B isn't out of the question IMO.
I'm not a huge fan of Frozen, but obviously kids, especially little girls just adore it. Again, the first Frozen was the box office queen in 2013. I don't think Frozen 2 will have as much appeal to the general audience as The Lion King, but this could be offset by repeat viewings.
A potential dark horse is Pokémon: Detective Pikachu. Pokémon is the largest media franchise in the world
. Depending on the quality of the movie, Detective Pikachu could be a huge hit or an absolute flop. I've never heard of the director (Rob Letterman) and had to look up his filmography (Shark Tale, Monsters vs. Aliens, Gulliver's Travels and Goosebumps). That being said, I thought the trailer looked decent.
Whether Avatar is dethroned or not, 2019 looks like a banner year at the box office.