1. Thanos Is Watching...
I've talked a lot about how Marvel could incorporate various twists and turns into the plot of Captain America: Civil War, but what about that all important after-credits scene? As many fans have already noted, there's a very good chance that The Vision wont make it out of Avengers: Infinity War alive due to him having one of the Infinity Stones attached to his head, but what if this movie were to reveal that Thanos is in control of him? If that's too much of a stretch, then it's at least logical to think that the Mad Titan may have a way of using the Mind Gem from afar, especially as it was obviously in his possession for some time before he put it into a staff and handed it over to Loki. The reveal that Thanos is using it to spy on The Avengers - or the fact he has eyes on them regardless - would be very cool, and obviously goes a long way in setting up the events of Avengers: Infinity War a few years from now. Of course, you may be thinking that it's far too soon to start dropping hints about that movie, but bear in mind that the writers and directors of Captain America: Civil War are actually reteaming for that two-part epic, so it would actually be more shocking for them not to acknowledge their future plans in some way here. The reveal that Thanos is already taking aim at The Avengers is what would shock fans the most though, and a tease here would get excitement levels to an all-time high!