This is something I’ve been thinking about for awhile. My current inspiration is the custom cleric class that I put together and talked about here:
This led me to thinking about tweaking the generic turn undead mechanic, which I did. So the next steps it seems to me, would be to put that mechanic, along with a couple of the changes I made for my custom class, into a revised cleric. After that, why not take a look at the other core classes?
If you’ve got ideas, let’s toss them around!