Just a clone
Thus far, the MCU hasn’t presented us with this possibility – but we can’t exclude it…What if there’s a clone of Steve Rogers inside that stasis tube, someone who can tip the balance in HYDRA’s favor? It certainly wouldn’t be impossible…
By now, the evil organization must have realized that the super serum was lost when its creator died. So the best alternative would be to replicate the next best thing – the human being on whom the super serum actually worked.
The Winter Soldier will be just a failed experiment that tries to prevent another. And Steve Rogers certainly doesn’t want to meet his evil twin on the battlefield. As for Tony Stark, having a Captain America on his side could certainly further improve his chances of winning the Civil War.
