With an exclusive article stating the box office success of Transformers: Bumblebee, Deadline states that Transformers: Bumblebee 2 is in the works.
Although we should take it with a grain of salt, Deadline has proven again and again that their statements on exclusive articles are actual facts rather than speculation.
“Helmed by Travis Knight, the well-received picture reboots the Transformers series with humor and an emotional connection that’s been fed by great word of mouth. There’s a sequel in development (might that mean a Bumblebee/Optimus Prime buddy movie?). Before that, there’s an animated movie in the works and future iterations of the overall Transformers series that may introduce new characters and bring others along.
With Bumblebee, producer Lorenzo Di Bonaventura says, “We had many objectives (including) to bring a new set of families into the series, and that succeeded; in the after markets that will continue to succeed in a big way. Part of our obligation was to bring people back who had left the franchise or never experienced it which worked well… We are finding our way. Our intention was we wanted to please the core fans but also bring a new audience”.”