Let's suppose Weimar Germany continues on and Hitler never takes power.
Italy likely will still provoke a war in Yugoslavia by supporting the Croatian Nationalists in their bid to secede from the Serb-dominated Kingdom, in which case Hungary has a prime opportunity to reclaim Vojvodina and eastern Slovenia.
In the 1935 Czechoslovak elections, 33.2% of the vote went to the German Parties, Hungarian Parties, and Slovak Fascist parties. Increase the political instability and get the Slovaks to secede and I could see a situation where Hungary annexes the Vienna awards lands (southern Slovakia and Carpathoruthenia) and puts the rest of Slovakia under a protectorate like history Bohemia-Moravia's status under Germany.
I can't think of a way for the Hungarians to get land from Romania, short of a Soviet-Bulgarian-Hungarian stockpiling on the country.
Italy likely will still provoke a war in Yugoslavia by supporting the Croatian Nationalists in their bid to secede from the Serb-dominated Kingdom, in which case Hungary has a prime opportunity to reclaim Vojvodina and eastern Slovenia.
In the 1935 Czechoslovak elections, 33.2% of the vote went to the German Parties, Hungarian Parties, and Slovak Fascist parties. Increase the political instability and get the Slovaks to secede and I could see a situation where Hungary annexes the Vienna awards lands (southern Slovakia and Carpathoruthenia) and puts the rest of Slovakia under a protectorate like history Bohemia-Moravia's status under Germany.
I can't think of a way for the Hungarians to get land from Romania, short of a Soviet-Bulgarian-Hungarian stockpiling on the country.