You would have to be eagle-eyed and a damned fast reader to pick up on this Easter egg! While the Avengers were rifling through files in Avengers: Age of Ultron, they stumble across a particular document relating to Ulysses Klaue, played by Andy Serkis. Shockingly, this file actually details a pretty major plot point for the upcoming Black Panther movie and possibly Captain America: Civil War. It looks as though, just like in the comics, Klaue will be directly responsible for the death of T'Chaka, the father of the current Black Panther, T'Challa, played by Chadwick Boseman. Just above the picture on the left (below) is a passage that details Klaue's assassination of T'Chaka. It also mentions him being a former member of the Intelligencia. In the comics, they're a group of intellectual villains with ties to the sciences. Villains such as The Leader and MODOK have been affiliated with the Intelligencia. Although it's unlikely that the group is as super villain heavy in the MCU as it is in the comics.