Transformers 6 and Bumblebee 2
 

Lorenzo Di Bonaventura confirmed to Japanese entertainment site Cinema that the Transformers movie franchise is pushing ahead with development of a sequel to Bumblebee, which will feature a bigger role for Optimus Prime, but also a follow up to the failed Last Knight, likely as a means of closing out the previous Bayverse and resolving the cliffhanger from that movie

https://heroichollywood.com/transfor...optimus-prime/

The Optimus Prime solo movie has been scrapped, and Bumblebee 2 will be a buddy cop movie inspired by Lethal Weapon, with Optimus in the Murtagh role

https://news.tfw2005.com/2019/03/17/...lebee-2-385444

Does anyone even want a Transformers 6 at this point?

Paramount. Cha-ching!

China probably.