Do we have any indication what Hitler's plans would have been had the Allies continued to appease him? If the invasion of Poland had been allowed, do we know what he would have done next? Some planning document or minutes from a meeting, perhaps, where they discussed what their next steps might be?
It seems pretty clear from his rhetoric and later actions that Hitler was, to some degree, picking a fight. That is, he wanted to go to war, if not against the world then at least against certain enemies like Russia so he could get his much-discussed "breathing room."
But was that the only purpose of the remilitarization of the Rhineland, the Anschluss, the occupation of Czechoslovakia, the invasion of Poland, etc? To get as much as he could before the bullets inevitably started flying? Or was there an end goal, some ultimate phase that he was aiming for, in lieu of (or in advance of) outright war?