Last December, stunt performer Heidi Moneymaker (best last name ever) posted pictures on Instagram showing Scarlett Johansson wearing the same clothes and rocking the same hairstyle that she had at the beginning of Captain America: Civil War, when Black Widow and some of the Avengers were in Lagos, Nigeria to apprehend Brock Rumlow, a.k.a.
Some of them shows Chris Evans wearing the same Captain America uniform he had on in The Avengers.
So rather than Crossbones being miraculously resurrected, we would be seeing him as he was in Civil War.