Re: A.I. Article From The Verge says "currently no plan to let you turn that off.".

@OskooI_007 They weren't in Battlefront 2. People were complaining and they didn't change them because the whole co-op mode was based around them.

But again, this will be a non-issue for most people. Most join full severs or near full, and there will be plenty of that when this game launches and in the months after. It could be months before you ever actually see a bot in game lol