Marvel Studios filled for a new limited liability company (LLC) that may hint at a new Disney+ streaming series. Since the start of 2021, Marvel Studio has expanded the canvas of their universe by creating series for Disney+ like WandaVision, The Falcon and the Winter Soldier, Loki, and the upcoming What If...?. More shows like Ms. Marvel, Moon Knight, and She-Hulk are coming next year with even more unannounced projects on the way.
At Disney's Investor Call in December 2020, Kevin Feige revealed three series that had not been known to the public at that point: Armor Wars, Ironheart, and Secret Invasion. They also recently confirmed a spin-off based on the character Maya Lopez, a.k.a. Echo, who will first be seen in the upcoming series, Hawkeye. As the Marvel Cinematic Universe continues to grow more and more, it also means more series for Disney+ to keep fans entertained between releases, and Marvel's latest business move may hint at what character could be joining the MCU soon.
Richmond Street Productions LLC was recently created by Marvel Studios. While the name might not jump out immediately, the site Murphy's Multiverse points out that Cypress Hill Cemetery is located near Richmond Street in New York City and theorizes it may hint that Disney and Marvel are developing a series based on Ghost Rider. Specifically the Danny Ketch version of the character who has close to Cypress Hill Cemetery.
Danny Ketch was introduced in Ghost Rider vol 3. #1 in May 1990 by creators Howard Mackie and Javier Saltares. Cypress Hill Cemetery is a frequent location in Ghost Rider comics in the 1990s as well as the base for the team Midnight Sons, so the name of the production company might be a nice clever acknowledgment and Easter egg hinting at the series. The MCU currently has featured two incarnations of Ghost Rider, with the Robbie Reyes (Gabriel Luna) incarnation being a major part of Agents of S.H.I.E.L.D. season 4 where the flashback origin also showed the Johnny Blaze version of Ghost Rider. A spin-off featuring Gabriel Luna's Robbie Reyes Ghost Rider was in development at Hulu but was canceled in 2019. While it is currently unclear how connected Agents of S.H.I.E.L.D. is to the main MCU now or if it takes place in a separate multiverse, it makes a certain amount of sense that Marvel would want to introduce a Ghost Rider to the MCU soon.
The supernatural of the MCU has started to expand since the release of Doctor Strange in 2016. WandaVision introduced Agatha Harkness into the MCU and featured a new Darkhold that was different than what was seen in Agents of S.H.I.E.L.D. and Runaways. Blade and Moon Knight will soon be joining the universe, and Kevin Smith hinted that Marvel Studios has plans for Werewolf by Night. All these various supernatural elements mean the MCU is primed for Ghost Rider to enter, and may assemble their own team. Marvel Studios already has the Guardians of the Galaxy to protect it, the supernatural side of the MCU could use a Legion of Monsters or a Midnight Sons to defend it.
Source: Murphy's Multiverse