My theories about Knights of Guinevere

Teaser Image

• The blue-haired lady is the "princess" of this place. She may just be a mascot, however; judging by the advertisement posters, this place is a public attraction rather than an actual kingdom. (Also, the place is literally called Park Planet.)

• Everything looks barren and somewhat messy, hinting that something or someone wreaked destruction across the park and left it for dead. (I assume it's the princess, since someone vandalised one of the posters and partially crossed her out.)

• There's another poster for something called "Starsnuff" - judging by the imagery of the skull with what appears to be a flower growing from it, it may be a rock band or something.

• "Blue Lung" seems to be some form of respiratory disease. The severity of such a condition is yet to be determined.

• There's a bit of graffiti on the wall to the far right, but there's not enough seen here to really know what symbol or word it is.

Teaser Trailer

• The princess is only really a princess in her subconscious mind; in reality, she seems to be some sort of android with... tentacles? And bioluminescent blood? Perhaps a creature has inhabited the android and is pretending to be her.

• She's being experimented on by a team of scientists. There is surgery equipment on the table, including a saw, adding further support to the theory that the android is at least partially an organic creature.

• In her peaceful mindscape, she struggles in her sleep at first, reflecting her real-life situation. But when she "wakes up", she seems fine. Perhaps the garden is just an illusion that her brain portrays when she's being experimented on; and when she goes back to "sleep", it's because she's actually waking up again.

Overall

My theory is that Knights of Guinevere will portray the concepts of metaphysical escapism and organic-mechanical symbiosis. I predict the show will be about scientists finding this creature / bio-android, realising the dangers it holds, running experiments on it, and covering everything up as a theme park attraction.

As for Blue Lung or Starsnuff, I bet they're just other parts of this world that are brought into the main story for world-building purposes.