Even though Ant-Man's coming in July, the MCU movie everyone's really looking forward to after Age Of Ultron is Captain America: Civil War, which will bring one Marvel's most beloved arcs to the screen. The studio's answer to Batman V Superman, it'll see Cap' and Iron Man on opposing sides of Superhuman Registration Act, eventually coming to blows, while also marking the introduction of a certain web crawler. There's plenty of ways a post credit scene could lay some groundwork - slip in a bit of Tony Stark meeting with Government officials or maybe even the New Warriors school mishap that tips the whole anti-supers sentiment over the edge in the original arc. It's such an obvious choice. And that's kinda the problem. While this seems highly possible on the face of it, it's rather safe and not all that novel for Marvel; Civil War may be a year away, but its events are at the forefront of everyone's minds, making it hardly worth sticking through the long list of visual effects supervisors. If there is going to be a scene hinting at Captain America 3, expect it to be taking a look at one of the smaller parts of the bigger story, two of which we'll look at next. Likelihood: 5/10