I meant no matter which member of the Nazi hierarchy takes over from Hitler. Whether for expansionist or economic reasons, to "secure Germany's borders", because too many people in the party wanted to scrub out the shame of losing the first world war, or because another country (Russia?) saw Hitler's death as an opportunity to strike first, avoiding war throughout the 1930s and 1940s would have been pretty difficult. Nothing's completely set in stone, of course, but I'd put a follow-up conflict involving Germany within 25 years of WWI up there with death and taxes.
Yes, there were some Germans who wanted to avenge the defeat of 1918.
And there were some Germans who wanted to annex territory.
And there were ten times as many Germans who thought starting another war was a horrible idea. Germany lost over
two million dead in WW I. Despite defeating Russia and driving deep into France, Germany lost. For all the chatter about
dolchstoss, no one seriously argued that the German army in 1918 could have held the line, much less advanced.
At the top level, the strategists in the Generalstab saw clearly that Germany had no hope of breaking Britain's strategic blockade - which in World War I had strangled Germany. Nearly everyone was afraid of what strategic bombing could do.
Yes, there were Germans who wanted to rearm, and reassert Germany's place as a major military power. But there was a big step from that to starting a war. Goering was one of that "Wilhelmine nationalist" crowd, and in 1939, he bent every effort to avoiding war (on Germany's terms, of course).
But Hitler was in charge, completely - and he was reckless.
Which is not to say that some other country might not start a war that would involve Germany - probably the USSR.