MID-CREDITS SCENE
[at an underground HYDRA lab Baron Wolfgang von Strucker is talking with a HYDRA scientist]
HYDRA SCIENTIST: It's over. Fury has released everything to the public.
BARON WOLFGANG VON STRUCKER: Everything he knows about.
HYDRA SCIENTIST: von Strucker, if they get word of our work here, if they find out we serve HYDRA...
BARON WOLFGANG VON STRUCKER: HYDRA, SHIELD, two sides of a coin that's no longer currency. [they walk over to the corner of the lab where Loki's scepter is being kept] What we have is worth more than any of them ever knew. We've only scratched the surface and already... [they start walking out of the lab] There are other facilities doing HYDRA's good work around the world. We'll feed them to Captain America and his colorful friends. Keep them off our scent.
HYDRA SCIENTIST: What about the volunteers?
BARON WOLFGANG VON STRUCKER: The dead will be buried so deep their own ghosts won't be able to find them.
HYDRA SCIENTIST: And the survivors?
BARON WOLFGANG VON STRUCKER: The twins. [we see the twins, Pietro and Wanda Maximoff, aka Quicksilver and Scarlet Witch, being kept in glass cells each exhibiting their powers, Pietro having superhuman speed and Wanda having telekinetic powers] Sooner or later they will meet the twins. It's not a world of spies anymore, not even a world of heroes. This is the age of miracles, doctor. There's nothing more horrifying than a miracle.
POST-CREDITS SCENE
[At the Captain America exhibit in the Smithsonian Museum we see Bucky in civilian clothes staring pensively at the display about himself]
[End of Captain America: The Winter Soldier]