The Red Skull is currently inhabiting the body of Aleksandr Lukin.
Arnin Zola is working with the Red Skull.
Zola's specialty is cloning.
There's a blacked out text area in the published script for Captain America #25 when he's shot by Sharon Carter.
Here's what I think happened in that blacked-out portion: Sharon extracted Cap's DNA. Which is why the dead body of Steve Rogers ended up looking like his 98-pound-weakling pre-Super-Soldier self.
The DNA is being used by Zola to make a new Cap body.
That Cap body is going to house the mind of the Red Skull AND Steve Rogers, with the Skull in total control (for now).
Because the whole point of the Red Skull is to make Cap watch helplessly as all hell breaks loose. Whatever the Skull's plans have been, they ALWAYS involved Cap being a helpless witness to tragedy.
Which also means that at some point, this Cap clone is going to eventually face off against Bucky as the new Captain America. At the pace Brubaker is writing this? We're looking at a climactic battle in issue #50.
There. I've said it.