Captain America is sadly often re-interpreted as being a reflection of what America is, but he's supposed to be a hopeful, idealistic embodiment of what America can be.
(And I don't just mean Steve Rogers; Red, White & Black is a great example of that.)
However, I'd giggle like a schoolgirl if they're doing a Jack Monroe again.
After WWII, the comics struggled to use Captain America outside his originating wartime context; he became a paranoid Communist-hunting zealot.
The writers realised this wasn't working and retired the character, then later revealed that version of Cap had been a disturbed man named Jack Monroe.
It was about the most graceful workaround they could've gotten, and framed the Red Scare paranoia exactly as it should have been: something presented as wholesomely American but actually poisonous to American values.
I'd be disappointed if they were just re-hashing a decades-old plot arc with Hydra!Cap, but it would make a kind of sense.
(The Jack Monroe story is how Cap got encased in ice, actually: at first everyone thought Steve Rogers had survived WWII, but it turned out to be Jack because Rogers was a Capiscle. After Monroe was exposed, the Capsicle was found and thawed out.)
That most iconic "man out time" element of Steve Rogers was invented in the 60s as a response to the character's 1950s McCarthyism.