Maren, me too. Trace and Flora, not a chance. While his past remains a substantial part of him, subconscious or not, so is Flora. Last time he went berserk, it was for her, not himself or anyone else. Her scream woke him up, and he slaughtered his way to find her in his black mana-induced rage. Questionable, but precisely directed.
Whether Saria is brought back or not, in whatever form, black mana rage or not, he'll stick by Flora no matter what. It's who he's become. He might go berserk again, but he won't leave her, even if his memories come back.