Shadow Arceus said:two reason why n isnt the champion: he said that he wants to be stronger than the champion. and there's battle footage of his battle sprite, and in it there's only one pokemon. no champion will ever have only one mon, and no other champion has ever been battled before you face the rest of the e34( blue doesnt count because he was ur rival, and it wont be the same with N because he isnt ur rival)
It's implied there will be multiple battles w/N... Sound like a rivalry to me...