UPDATE: It looks like Big Hero 6 might not be making their live-action debut anytime soon after all. In a brand new report by Variety, they state that their sources at the studio confirm there are no current plans. They believe the franchise is currently staying in Disney’s hands rather than returning to its Marvel branding. The upcoming Baymax-focused sequel is also stated as a reason that Disney is keen on keeping the franchise in-house to avoid confusion. The original film and its sequel series never got the iconic Marvel branding, so that could be one of the reasons. It doesn’t mean it will never happen, but for now, the recent report by DisInsider has been debunked.
When Marvel Studios said that the universe is expanding, it seems like they really meant it. According to Derek Cornell over at TheDisInsider, the superhero team known as Big Hero 6 is coming to the Marvel Cinematic Universe. You may have already heard of this team before, most notable for their solo animated picture from Disney animation back in 2014. While the film was a big departure from the original comics, it still was quite popular amongst fans. Now it seems that DisInsider uncovered that Marvel Studios is ready to bring them into the Marvel Cinematic Universe.
At the moment, there isn’t a lot known about the project at this time. It is uncertain if they plan on introducing the comic version of the team or if Marvel will go with Disney’s versions. What we do know is that this will be a live-action adaptation. They also hint at them potentially appearing in a future series, such as Secret Invasion, the rumored Agents of Atlas, or Doctor Strange in the Multiverse of Madness. As such, it would rules out projects like Marvel’s “What If…?”. However, we know that Marvel tends to sneak in a couple of easter eggs now and then regarding their upcoming projects. So, while it may not have been a direct hint that Big Hero 6 is joining the MCU, Marvel did sneak a nice little easter egg regarding one of the franchise’s characters. Tadashi Hamada’s name is seen briefly in Avengers: Age of Ultron (2015) when Tony Stark goes through new AIs to replace JARVIS.
Following the 2014 animated film, Disney produced a 2D animated sequel series titled Big Hero 6: The Series, which will end this year. There is also a spinoff planned to debut on Disney+ next year titled Baymax. So, it looks like there are big plans for Hiro and Baymax moving forward.