They intend to replace it with Kindle Unlimited, but it isn’t clear which publications are included!
This is pretty big stuff, if true.
Smaller magazines will only be included if both Amazon and and the smaller magazine agree on it.
Some magazine editors have straight up said they have no idea.
It seems Amazon is using uncertainty to increase fear.
Seems like Amazon is being a jerk about.
To answer your question: nobody knows what this will look like.