hunyadi wins first battle of kosovo 1448

so in 1448 hunyadi marched around 30000 men in to serbia to attack the ottomans and hoped the serbians would join him which they did not do so he tried to march and meat upp whit skanderbeg at Kosovo but for some reason skanderbeg could not make it and murad II moved to kosovo whit his army and now what do you think would happen if he won the battle and what would happen whit the ottomans
 
You mean the second battle? The first battle was in 1389.
It depends of circumstances of victory, if Serbs and Albanians join him, together crushing the Ottoman army, then the Turks lose innitiative and lot of territory, threatening much of their territory in Europe, making siege of Constantinople in 1453 unlikely. If Serbs don't join him and Albanians are contained, then the most Hyundai can hope is to batter the Ottoman army hard enough to be able to retreat back to Hungary, preserving his forces, but failing to change strategic situation.
 
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