I have just one that I can add to this that I'm tweaking from a mythic path I was working on.
Seize the Night (ex): A fighter of X/Y/Z level can remain in his original position in initiative after a readied action or delayed action,. If the fighter readies an action, but does not take the readied action before the start of his next turn, the fighter may take a (move/standard/full round) action. This action occurs just before your normal action.