MCU Phase 5 and 6 comprise many new titles that could justify an existing fear. By Phase 4, the MCU has already introduced a host of different characters, many of them leading their own solo franchises. With the Multiverse Saga now in full swing, the MCU is only getting bigger, but it can only reach a certain point before it gets out of hand.
Marvel has confirmed several movies and shows that will shape the Multiverse Saga throughout Phase 5 and 6. Some of them will be direct sequels, like Guardians of the Galaxy Vol. 3; others will be big crossover events, like Avengers: The Kang Dynasty and Avengers: Secret Wars; and others will introduce brand new MCU characters, including Wonder Man, Adam Warlock, and Namor. Even without all these new faces, there are lots of moving parts that make the Multiverse Saga more complex than the Infinity Saga.
Related: Why There's No Avengers Movie In MCU Phase 5
Overcrowding the MCU after Avengers: Endgame has always been a possibility, and the increased number of yearly releases only supports this concern. The MCU will soon be so crowded that two things could happen: either every title has to become a MCU superhero team movie, or many characters will have to remain off-screen for years between appearances. There's simply not enough time to devote to every character without congesting the cinematic universe.
The MCU's Infinity Saga followed a core group of characters. The original Avengers returned to the big screen every one or two years, and their journey was parallel to the development of the saga. The same is expected to happen over the next few Phases with key characters like Kang the Conqueror and Doctor Strange, but this time, there will be so many new characters that the attention
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