The Castillian war of Succession becomes a Spanish war of Succession

I was thinking of this scenario, Joanna la Betraneja is married to the son of John, Duke of Calabria the Valois claimant of Aragon, Nicholas in order to balance with Ferdinand of Aragon and Isabella of Castille in that case the war of succession of Castille and Aragon is merged and the Angevin claims to Naples and the pretentions of La Betraneja are merged, if such scenario happens would the spanish war of succession be long.
 
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