A few things that really stuck out as odd or curious:
1. The utter lack of emotion from Cap about Bucky choosing to go back into cryo. He spent 2 years searching for this guy, pulled a helicopter back, breaks all sorts of laws to stick by him, but then looks almost bored when Bucky tells him he's going back to sleep. It was bizarre.
I do hope this means Bucky will reappear in the BP movie.
2. How did Zemo know Sam would lead Tony to Steve & Bucky? That seems unlikely.
3. Where was the video camera used to record the Starks' murders set up at? It seemed a bit too convenient.
4. Did Vision have a crush on Wanda? He told Tony he accidentally hit Rhoadey because he was distracted (Wanda was in his arms). I wonder where they're going with that.
5. Is Crossbones really dead? Because that would be such a waste.
6. Also, it struck how similar Peter's motivations for superheroing were to Cap's, and I wonder if Cap had found him first if he could have been swayed to his side. But then again Peter is a science geek, he may not have ever been able to get past his worship of Tony.
7. I would fully support a Winter Soldier movie as long as Sam was featured in it to give Bucky shyt. Their comedic scenes in CW were gold.