Looks interesting! I'm all in for writing secure code. Sadly, Zend said that they don't want PHP to change a lot because of backwards compatibility, and that's why we are still stuck with different bad ideas that appeared in its first versions...
PHP 7 will help to speed up Wordpress sites twice, but it doesn't help with code itself anyhow. I haven't looked at it for a long time, but back then its code was pretty bad. Drupal 8 built on top of Symfony 2 components is terrifying, as PHP's main selling point (and Drupal specifically) alwasy was simplicity.
This article gives some details on the future of the language: https://blog.amasty.com/php-7-and-script-languages-future-in...