Kevin Feige has said
that Cap 2's "primary storyline takes place post-Avengers, Steve figuring out his place in the world. Tony goes back to Malibu, Thor goes back to Asgard, but there are a number of people who stay in S.H.I.E.L.D. Steve, for the time being, is going to be one of them."
We know that Cap will be a "fish out of water" trying to carve out his own place in the 21st century MCU (Sharon Carter, Falcon, Winter Soldier, HYDRA, Zemo, Arnim Zola and Red Skull could all help with this). But with SHIELD having a big role and the fact that Cap 2 could most directly lead into Avengers 2, it sounds possible that we will see more crossover-related MCU characters in this movie than we will see Iron Man 3 and Thor 2. What non-Cap specific characters/organizations/easter eggs would you like to/expect to see?