Iteration plans for Tracking Protection

I have been trying to find some information about the future/iteration plans for Tracking Protection. Does anyone know what is being worked on, or what features the Firefox devs are planning to implement aside from fingerprinting?

I found this page: https://wiki.mozilla.org/Security/Tracking_protection

Sometimes the wiki lists bugs and work in progress, but I didn’t see it there. ??

thanks, interesting.