User blog comment:KingFubuki92/RWBY Villains: Are they "Good" or "Bad"?/@comment-26018514-20171123063828/@comment-26018514-20171123070448

Like I said, he might join them temporarily, but that isn't a true redemption unless he then dies or cuts ties with the rest of the villains entirely, which seems unlikely because he appears to lack empathy... All Emerald needs is for Cinder to die/be betrayed/consumed by Salem and she's golden for that heel-face-turn, Merc needs better pay, a chance at survival, and a reason he won't betray the antagonists, like a code or a stake in humanities survival.

So Emerald has the better chance at redemption because she has the fewer requirements to get there... don't get me wrong, I like Amalgam so I kinda hope for his eventual redemption, but it is less likely unless Cinder becomes the next big bad after Salem is defeated... but that seems unlikely if Salem cannot be killed.