This theory is something that’s been in development since January of this year, and it has taken lots of forms over the past few months, but this is the most updated version to date. One of the running jokes in the community is that Sony somehow tends to spoil some of the most important scenes or take shots from the ending of their films and place them in the trailers, making it easy for fans to be able to piece together a film’s plot based on a few trailers. (I.E. TASM2, Spider-Man: Homecoming, Spider-Man: Into the Spider-Verse, Far From Home, Venom) . The same could be said for the Morbius teaser trailer, which dropped in January of this year (I know right? It feels ages ago). Something that caught the attention of everyone who saw it was that surprise cameo by none other than Michael Keaton at the end of the trailer. But with this surprise, came many multiple reactions.
Michael Keaton in Morbius (2021).
Some saw this cameo as a possible “power move” by Sony in order to draw in audiences to a movie about a character that not many people have general knowledge about. However, many fans saw this as a possible connection Morbius may have to the Marvel Cinematic Universe, by acknowledging that the events of Moebius occur within the . & while I agree that this film may establish a “partial connection” to the MCU, I believe this to be the smaller picture. There certainly is a bigger picture being painted here when it comes to this film. And when I mean big, I mean State-Wide Prison big.
San Quentin Penitentiary
Welcome to “San Quentin State Prison”. A maximum-security correctional facility for and home to some of the most notorious inmates in all the US. The name sounds familiar no? That’s because it was seen most recently to be holding one of the most dangerous killers and villains in the entirety of Marvel Comics, Cletus Kasady a.k.a. Carnage, back in 2018 during the Venom post-credit scene. It was also seen in the first Ant-Man film, back in 2015 when Scott Lang was released from prison.
Now, you might be asking yourself how or why this prison is important not only for this film but for the context of the MCU and the SUMC as a whole. Well, it’s quite simple. I believe that Cletus Kasady, Adrian Toomes, Mac Gargan, (and coming soon), Michael Morbius will all be in the same prison by the time Morbius drops in March of next year and that by doing so, it will be the point in where the MCU and the SUMC will converge and acknowledge both of their universes as one and the same.
POINT #1: THE UNIFORMS
The police officers that were seen in the Spider-Man: Homecoming post-credit scene and Venom post-credit scene are wearing the same patch on their uniforms on their right sides. (Spot the first two images). Another thing to point out is that when we see Adrian Toomes in the Morbius trailer, he was still wearing his prison outfit from Spider-Man: Homecoming, the same white uniforms on Gargan and Kasady. Most prison systems use different colored jumpsuits for the different categories based on the crime you are in. White signifies “segregation unit or in specific cases, death row inmates.” And who better than supervillains to take up that mantle. But perhaps that may all be a coincidence no? Well, let’s dig a little deeper.
POINT #2: LOCATION, LOCATION, LOCATION
Liz Allan Toomes in Spider-Man: Homecoming (2017).
The last time we saw Liz Allan Toomes in the MCU was at the end of Spider-Man: Homecoming, where following the final battle between Spider-Man and Vulture, she revealed she was moving to Oregon with her mother to avoid seeing her father’s trial. Now, in the Spider-Man: Homecoming post-credit scene, Toomes’ family comes to the prison where he is being kept in to visit him. Now let’s think about the logistics of this for a minute. Oregon is on the west coast of the US, and if the prison was in New York where they originally lived, Liz and her mother would have to go cross country every time they wanted to visit her father in prison. Now, personally, I don’t find this to be feasible/smart in any way. They must have moved to the west coast for a reason. So if we take into consideration those factors, if Adrian was sent to San Quentin State Prison in California, and Oregon is the state directly above it, one can assume that they moved to the west coast in order to be able to visit Adrian while he was in prison. Something else we know is that the prison is by the sea. 
This shot of 6 seagulls from the Spider-Man: Homecoming post-credit scene and the sounds of waves crashing indicate that wherever Adrian is, they’re in a prison by the sea. And it just so happens that San Quentin State Prison fits that MO.
CONCLUSION: PRISON RIOT
Something we need to keep in mind is that during the trailer, we see Morbius walking by a Spider-Man poster in an orange prison jumpsuit. This detail is important because it means that he was recently incarcerated and somehow managed to escape. Not only that, but we also see Adrian in front of police lights when we see him in the trailer. Taking into consideration all of these factors, I have reason to believe that we’ll see a prison riot/jailbreak moment take place during Morbius. And it would actually serve as a very good plot point not just for this film, but for the future projects to come. By establishing a prison riot/jailbreak moment in Morbius, not only does it provide an escape for Michael Morbius so that the plot of that film can continue, but it can also potentially set up the future Spider-Man films and the upcoming Venom: Let there be Carnage sequel, by allowing Toomes, Gargan and Kasady to all escape from the same prison at the same time. Not only that, but they’d also be pay homage to Kasady’s ‘Carnage’ origin story, where a riot takes place in the prison where Kasady was kept and he managed to escape the prison whilst the riot took place. So if this chain of events happens to become true by the time Morbius rolls around in 2021, I think we can say this is going to cause a world of trouble for our “Friendly-Neighborhood”.
