I've been looking for something like this for a while.
I need to be able to place navigation links on my category pages, but the links would go to the next category (either by increasing the ID# by 1, or by choosing which categories are part of the array to pull from within an admin).
I'm using my categories like a calendar for movie release dates, and each movie is its own post. Each post is assigned a category for its release date and I would like to be able to put a "Next Week" link on the category template that would automatically go to the next release date.
It would be far too time consuming and inconvenient to create a separate category template for each release date.
Does anyone know if such a plugin exists? or is anyone willing to create one for me? If so, I am willing to pay.