It does seem very possible that the MCU is building her up to play a more antagonistic role in the future, but I wish we could’ve gotten some acknowledgment of the bad things she did in AoU. You’d think the fact that she was a willing accomplice to HYDRA and that she brainwashed the Hulk into going on a rampage would get brought up in CW, but it doesn’t, probably because it would make it more difficult to take Cap’s side.