Selenium won't really be impacted, as it's higher-level than PhantomJS.

This is also a great example of why it's smart to use Selenium or something like it for scripting the tests. You can easily swap out for another backend in Selenium, but if you wrote tests in pure PhantomJS, you're now stuck with a codebase that depends on unmaintained software.

You'll use Headless Chrome instead of PhantomJS as your driver.