Edward doesn't die and becomes Edward IV

What would happen if Edward the Black Prince doesn't take part in the Castilan civil war for Pedro the Cruel, and his health doesn't worsen. From all accounts he was the ideal medieval king, Strong, Warlike, and a good administrator. He was similar to his father Edward III in talent. If he did become king would England grab more French land or would he attempt to end 100 years war??Would Richard even become king because the Black Prince brought his family to some city in southern France, where his eldest son Edward died from some illiness? would his son Richard become a more capable ruler if he isn't declared king at age 12? What other possible butterflies could come as a result of Edward not Richard replacing Edward III.
 
Edward IV

I don't recall all of the circumstances of this period. I do remember something about economic difficulties as a result of Edward III's French wars..I think that Richard II is a lost cause because of his mental health. I don't think that the Black Prince as king would have been able to continue the war. Towards the end of the regin of his father, things in France were going pretty badly, and the money to continue was lacking.
 
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