Well, we do see Cap both in his Ultimate costume (which I hate) and in his classic costume with the real shield, so that's definitely going to get addressed. I also caught a glimpse of what looked like Cap breaking loose from somewhere.
Man, if it weren't for lotjx, I may not have watched this episode. Thanks so much for the year-long hype! The reception took up all of the last thirty minutes. Brutally tense the entire time. Almost like I was expecting something big to happen.