I didn't find the trailer particularly confusing.

It starts with the scene portrayed in Rembrandt's "The Anatomy Lesson of Dr. Nicolaes Tulp." There seems to be the man's soul leaving his body (perhaps allegorically losing his soul for what he is to receive). He then personifies Icarus and with his wings flies too close (indeed into) the sun.

The Rembrandt painting is a good representation of early medical technology when it was still thought wrong to dissect corpses. Early (post Enlightenment... thus hence Dark Ages) medical knowledge was gained by essentially stealing corpses to dissect and learn from.

I think this point being made is that we've come so far and learn so much, only to fly too close to the sun like Icarus. Our pride in our ever growing knowledge led us to a fall... the bio-technologies that maybe a little too much.





Then our protagonist(?) wakes from that dream to his reality... a future where perhaps medical technology has taken things a bit out of control. The rest is just general teaser trailer fodder. S**t's about to hit the fan to add tension, he shows off some biomods and gets ready for action.