There is a secret to reverse a few of the paths and whatnot, which I could probably extend to traits. Right now, however, it only handles the cowgirl path. It's also meant to have limited uses.
I tend to not sweat this too much, however, since you can save everywhere in the game, so that allows for experimentation to a great extent. I should probably make an effort to start expanding the "rewindable" content (I wanted to wait, because if a path isn't finished, I need to go back and change how I rewind it whenever I add something new).
Having some NPCs be more useful is also something I should work on . There are some candidates for these improvements (Janet the shop owner or your valet in Golden Leaf if you become a noble, to name two, as well as Alpharius and your summons).