Board Thread:Spoilers!/@comment-6175354-20140113165251/@comment-5106672-20140512183802

I don't think Regina will necessarily revert back to being evil. She showed a great deal of self-control despite being clearly heartbroken. She blamed Emma for the unforseen consequences of her actions, rather than openly for ruining her life again. The old, evil Regina openly blamed Snow White from the beginning, so I don't think they're throwing off her character developement just that easily.