Abolishing IP rights would probably mean every dude with a passion project idea for a superhero film would set about making that a reality. Whether they could get other people to work with them on it (presumably the only remaining barrier to entry) is another story I guess, but that shitty Spiderman fan film became a reality and that was under capitalism.

The differences from the current scene would be

1. More passion less product
2. It wouldnt be the overwhelming majority of films coming out
3. More alternative options if you dont like the Official Product
4. Probably some original ideas rather than just adaptions

Like guys not only would there still be an MCU, thered be like 10 competing ones. Live action reboots, animimated ones, and probably more than one claiming to be the sucessor to the Disney one.

To me this would be fucking awesome but i just want to prepare the rest of you lol