This is an idea I have been tossing around in my head.
Most agree that the main reason gameplay becomes problematic at higher levels, meaning much above 15th, is the math becomes problematic. I mean from an attempt to maintain some form of balance. I don't have a complete solution, but I thought about is you borrow from 4e, and Star Wars SAGA, a bit and add a couple of twists. Let us take the classes as written. Now treat BAB, Skills, and Saves as just skills. Everybody progresses one ran every even level, similar to the poor BAB now. Certain classes get 1st level bonuses to skills, attacks, and saves. That would be similar to the save bonuses for classes in Star Wars SAGA. We could then add 10 more levels to the classes, for Epic play, while maintaining the math at the apparently magic number of a base of +15.
hu?
I do not understand. Can you provide an example of a class beyond 20th using your system?