Hitler dies in 1938...how is he remembered/what changes?

[True Federalist (진정한 연방 주의자)]

At the very least, plans are delayed until the leadership issue is settled. While Hess was Deputy Fuhrer, that post was more akin to Head of the DNC or RNC than anything else. It was a technical post rather than a political one, and Hess had it precisely because he had no potential political base of his own.

Long term, Hitler is probably at worst remembered much as Stalin is today in Russia.  Even if the Nazis eventually go ahead and do the same thing, apologists will claim they misinterpreted Adolf's intent too literally.

[True Federalist (진정한 연방 주의자)]

It's not like people didn't know that Hitler was a potentially murderous megalomaniac by that point (Mein Kampf laid out a lot of what he intended to do, and certainly, by 1938, Hitlers murderous streak was already established e.g.The Night of the Long Knives).

From what I've heard the book wasn't particular well written which is why the sequel was never published in his lifetime.  Few read it, and those who did tended to chalk it up as the ravings of a young man without any practical experience in politics.  The Long Knives were viewed as Hitler getting rid of the real radicals in the party and was generally viewed with relief.  So I'll stand by my view that if he dies just after the Anschluss, he'll be remembered in Germany similarly to Stalin in Russia today.

[True Federalist (진정한 연방 주의자)]

There are people in Russia today who consider Stalin a saint.

It's doubtful that the Nazis would have stopped with the Sudetenland. The hyperbolic description of Bohemia and Moravia as a dagger embedded in the bowels of Germany would still be made, and taking full control of that dagger would certainly be done.

Even if the Nazis had been content with just the Sudetenland, it's doubtful that Poland would agree to surrender their rights in Danzig or allow an corridor separating Pomerania from the rest of Poland.  The reason Poland didn't worry about Germany until a couple years before the war is that the German military was a pathetic force until Hitler began rearmament. Had Poland stood with Czechslovakia in 1938, it's likely they would have defeated Germany had the Nazis made good their threat of invasion, even without Franco-British assistance.

Avoiding World War II as we know it requires the Nazis to take actions it is implausible they would take.  They were trapped by their ideology.  Only if an internal struggle prevents them from going any further after the Anschluss is it avoided, but even then that most likely only delays until 1940 the outbreak of war.