Board Thread:General Discussion/@comment-25556022-20141019033013/@comment-25556022-20141019080417

Quick freezing will preserve a body, and even if it was the super serum that allowed this to happen without water in his cells turning into expanding ice and destroying them, it remains a fact that Cap did not age over the time he was in the ice.

I seem to remember years ago the Red Skull who had Cap's serum in his blood giving Captain America a blood transfusion to save him. I have no doubt that like all the dead Marvel characters who suddenly come back to life, so Cap will return in young form eventually, maybe depending on sales figures.