"Ms. Potts, if you find this recording, don't feel bad about this. Part of the journey is the end," he says, rather prophetically. "Being adrift in space with zero promise of rescue is more fun than it sounds. Food and water ran out four days ago. Oxygen will run out tomorrow morning and that'll be it. When I drift off, I will dream about you. It's always you."
Back on Earth, Black Widow (Scarlett Johansson) and Captain America (Chris Evans) strategize their revenge. Cap tears up as we hear him say, via voiceover, "We lost, all of us. We lost friends. We lost family. We lost a part of ourselves. This is the fight of our lives."
Widow assures him their plan, whatever it is, is "gonna work." His response: "I know it is, because I don't know what I'm gonna do if it doesn't." Worth noting: Cap's beard is, tragically, gone.
There are also shots of Hawkeye (Jeremy Renner), who was MIA for the last film, in his character's Ronin gear from the comics. It's clear he's lost something in The Snappening too, likely his family.
After flashing the title, the trailer ends with Scott Lang, AKA Ant-Man (Paul Rudd), showing up to Marvel HQ to give some much-needed comic relief ... and hopefully help them all save the day. Looks like he somehow found his way out of the Quantum Realm after Wasp (Evangeline Lilly), Hank (Michael Douglas) and Janet (Michelle Pfeiffer) turned into dust.