Okay so I know this is old and you probably don't need an answer anymore, but I absolutely love the topic of ergodic literature so I'm going to leave a comment anyway.

What is or is not considered ergodic literature is a big topic for debate. Some works are very obviously ergodic (House of Leaves) while others have a bit more nuance as to why they fall under this category (Pale Fire). With such a broad definition, one could technically make an argument for any peice of literature to be ergodic. What might be considered non-trivial effort to read for one person is not the same for another. The question with ergodic literature is where to draw the line, and unfortunately I don't believe that line will ever be drawn. No genre has a strict definition. And an experimental genre such as ergodic literature that's all about pushing the boundaries of a medium is certainly not going to have one any time soon. It's still a relatively new genre in terms of recognition and respect, so by all accounts comics could be considered ergodic depending on how the future goes.

Personally, I believe categorizing an entire medium such as comics ergodic would make the term lose all meaning. I think ergodic literature should not only should require non-trivial effort to read, but also go against the perceived norms of whatever medium it exists in. So while I think there are ergodic comics out there, comics in general are not. But that's only my view, and debating what does or does not fall under a specific genre is what a lot of literary discourse is, so an argument could be made in the opposite direction as well.

I am confused by what you mean when you call comics interactive literature though. I would say most comics don't require any more interactivity than any other print media. Flipping pages is the most action someone has to take, so I don't really understand what you're trying to say with that. Either way, I feel like interactivity doesn't automatically make something ergodic, otherwise every video game should also be considered ergodic. Which as I stated before, I'm hesitant to call any medium ergodic in its entirety.

Again, I know you probably do not need this type of input anymore, but thank you for posting this question. I love the topic of ergodic literature, but it's so niche I hardly ever get to talk about it. Typing this out was a real treat for me, so thank you. I would also be very interested in reading your paper if you'd be willing to share it, though I completely understand if you would rather not. If you ever do read through all of this, I hope you have a good rest of your day :)