Thorin remains alive would bena serious plothole in lotr as well.battle of dale would be different,maybe with thorin died defending bard instead of dain,who instead would be king of the mountain after thorin.and because thorin isnt as wise as dain,he would probably atempt a full scale invasion of moria.that wouldnt go well(im sorry if there wrong detail)
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Fly,you fools!-gandalf,the bridge of khazad dûm
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