When is the WordPress 5 release date?

As per the conversation withe the core WordPress team, WordPress 5.0 will not be released on 19th October instead the most possible release date is 27th October 2018. 

Today, WordPress 5.0 beta 5 will be released any soon. 

RC (Release candidate) of WordPress 5 will be released on 19th November 2018. 

The Dry Run and 24 hour code freeze will be happening on the 26th November 2018. 

Source: www.WordPress.org