The few bits of lore that exist are probably going to be fumbled. I really do hope they do just have herobrine in the background of some scene. The trailer looks like they are going all in on hoglins, which I’m completely meh on. Endermen are probably too scary for a little kid movie tho.
At least it’s a step in the right direction. Especially since they’ve been extremely evil when it comes to teens. Tho I’m sure they’ll figure out how to continue to be evil with these restrictions/guidelines in place.