the universe would be controlled by Thrawn, especially since without the force he was capable of it anyway just many things some of which that werent in his control went horridable wrong, one of which is his body gaurd killing him....
THRAWN RULES!!!
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So what you're really asking is: What if he was Revan, but with Bastila's boobs?
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I doubt that the universe would be under Thrawn's control. It would depend on his level of sensitivity to the Force; he'd need to be pretty powerful to withstand the reborn Emperor's wrath.