In an interview online for the launch in India and China a blackberry member said there will be Android O for different devices. he didn"t mention specific the priv or dtek series ,but defintly it will be the KEYone. Because between lines and ofcourse the interview was all around the KEYone.
TCL (Alcatel) normally doesn't update the OS on their phones. They just come out with a newer model ever year with the latest OS
Hopefully blackberry steps up to the plate and gets us android O. We should get updates like Apple does with all of their devices plus anyone can get the early beta versions. My MacBook and ipad have always had the beta running on them with little or no issues and it's easy to revert back too.