If you have not notice the demo went live at the end of last month. Since then I've pushed a some small updates to improve some performance issues some players were having in addition to some bugs. Today's update improves an issue where dragging a look arrow could cause menus to pop up when not desired in addition to more minor bugs.
Don't have an exact date but the full release is planned for the last quarter of the year.
A quick shout out to Sir Jelly Bean who did a video covering Brain Hack Squad.