There are two Spider-Man: No Way Home post-credits scenes and they're both well-worth sticking around for. If you've seen the latest film in the MCU, go check out my review. If you haven't, then why are you reading this in the first place? Since you're going to continue, be warned.
Firstly, the scene takes place mid-credits. We see Tom Hardy's Eddie Brock trying to explain everything. He's very clearly drunk and he doesn't comprehend what's going on. He doesn't understand Thanos, the big purple alien that loves stones, and we hear Venom's voice agreeing with him. Venom chimes in how aliens really just like to eat people and it's pretty funny.
Then, Eddie Brock vanishes just like the other villains do when Tom Holland's Peter Parker wins the battle and the audience realizes what's going on.
Eddie Brock was brought into this universe just like the others were and now he's gone. The difference between him and the others is a small, pulsating black goo is left behind in Tom Holland's universe. I freaked out when this happened.
Finally, we're going to see Spider-Man face off against Venom and it's going to be done right. No offense to Sam Raimi nor Topher Grace, who played Eddie Brock, but their version of the symbiote just didn't do justice to such an iconic character.
The final moments take place post-credits. This is by far the longest post-credits scene that Marvel has done in the MCU, at least that I can think of. If you haven't seen the animated What If series on Disney+ yet, then this scene was probably very weird and didn't make sense.
First of all, you should absolutely watch What If because it was great and as my friend and fellow On Tap contributor Danny Schwartz predicted, it has implications for the MCU.
In summary, the What If episode with Doctor Strange shows what happens when he lost his love and becomes the evil version of himself. He goes into the multiverse and consumes cosmic beings on a massive scale becoming insanely powerful. The post-credits scene shows that version of Doctor Strange in the finals shots.
It also shows the Doctor Strange we know and love descending into madness, speaking with Wanda Maximoff, and losing his sanity. This inevitably leads into the long-anticipated 'Doctor Strange sequel: Doctor Strange in the Multiverse of Madness'.
Future of the MCU
The future of the MCU looks very dark. A large part of it takes place in the cosmos as Marvel President Kevin Feige has stated before. The Disney+ shows WandaVision, Loki, and What If all dipped their toes into the waters of the multiverse. That is going to be expanded upon relentlessly in the coming 'Doctor Strange in the Multiverse of Madness'. We're going to see some terrible things happen and forces more dangerous than Thanos will be unleashed upon the universe(s).
I also think this was a huge reset point for Peter Parker. The Tom Holland version of Peter never had his Uncle Ben moment. We never got to see the moment that made him who he inevitably becomes. Spider-Man: No Way Home changed that with the death of Aunt May. She even said the famous line typically uttered by Uncle Ben:
With great power, comes great responsibility.
I believe this moment had to happen to Peter and we had to see it. Even though what happened to his Uncle Ben is referred to often in the MCU, we needed to see it for Peter's character to advance. The next phase of Spider-Man is going to be wild. I cannot wait to see him take on Venom and the multiverse to collide within itself.