Its this and the desire to provide more icon options and customization that we will not be upgrading to font-awesome 5. In fact we will be moving away from font-awesome being used they way it currently is in 3.2. This does not mean that you can not use font-awesome icons.
We are just changing how we include it. Instead of including it directly, It will be something with far more customization allowing for far more icon options. You will be able to use pngs, svgs, or font based icons with the new system. Plus the svg/font icons can be served via iconify
allowing for more icons from any free to use icon source to include font-awesome.
https://area51.phpbb.com/phpBB/viewtopi ... 31&t=51321