Still, that ballsy decision speaks to how well the MCU has trained moviegoers to stick around until the end of the credits - clearly the studio isn't too anxious that fans would rush out early, especially since the rest of Ant-Man and The Wasp resolutely avoids making any reference to Thanos or the events of Avengers: Infinity War.
So given that both tales take place in the Marvel Cinematic Universe, does anyone in Ant-Man and the Wasp disintegrate too?
Major spoilers for Ant-Man and the Wasp ahead.
In the first scene we get a look at what Scott, Hope, Hank, and Jan have been up to in the time immediately after Jan's return.
Should Ant-Man and The Wasp have split the stories of Ghost's cure and Janet van Dyne's rescue into two different films? He's just going in with the Ant-Man suit and a plucky attitude.
It's a pretty bleak fate, given how obscure the Quantum Realm is to begin with, and with Hank, Jan, and Hope gone, the list of people smart enough to engineer a way to reach him-or even aware that the Quantum Realm exists-shrinks pretty dramatically.
Post-credits scenes are Marvel Studio's way of teasing what will happen next in upcoming Marvel movies. Upstairs, the giant ant "stand in" Hope programmed to mimic Scott's routine keeps on keeping on, oblivious to the apocalypse, playing Scott's drum set. Scott, meanwhile, is stuck in the Quantum Realm. What if the time vortexes are Scott's only way out of the Quantum Realm?
Marvel doesn't just toss away key lines like that for nothing; studio head Kevin Feige meticulously maps out every facet of this shared cinematic universe, leading us to believe that these time vortexes will play a role later on.
Naturally, we expect that Scott will eventually find his way out of the Quantum Realm without Hope, Hank, or Janet's help (we're counting on you, Luis!) and that his adventures in the subatomic dimension will somehow help the Avengers defeat Thanos and undo the effects of his universe-balancing snap, but we honestly have no idea how at this point - and that's pretty exciting. Or maybe he even learns about Thanos and attempts to warn the Avengers of his presence early on in the MCU's running timeline? The fallen heroes were reduced to dust in Infinity War and not shown to be explicitly dead.
This doesn't quite answer why Ant-Man wasn't in the battle at Wakanda, but it does set up where he is in Avengers 4, and it's particularly intriguing that he's trapped in the Quantum Realm.