Haven't heard or read anything about what happens next, but I can imagine that Mr. Damore is huddled with corporate lawyers now discussing a law-suit. OR his lawyers are huddled with Google's lawyers who seek a quick, quiet "undisclosed" settlement.

In his position, I'd be doing the former. Google might be doing the latter just to sweep this whole thing under the high-tech rug and be done with it.  I'm not sure I'm convinced that they've cancelled the town hall because of "safety" concerns.  Firing the guy was the first mistake. There probably was lots of heated discussion in corner offices that proceeding with the town Hall would be the SECOND mistake.  

Can the company vet ahead of time or control what attendees say? No? Uh-oh.  Think of the circus if media is allowed in--and the grandstanding that will occur.  Think of the outrage if media is barred.  No, it wasn't "safety" concerns alone that prompted a re-think.