I always thought the series would end when Henry taught Regina that love was the most potent force in the universe.
Then I wondered if it would be Snow who had to teach that to Regina, since Snow was instrumental in tearing Regina's life apart.
Now, watching how Regina wants to believe in her own innate goodness SINCE pre-massacre Snow believes in it... an watch it crumble without Snow's belief, watching the same thing happen with Mr. Gold and Belle/Lacey... now I wonder if these two will only reform when THEY want to do so, now when Henry, or Snow, or Belle, or Bae want them to do so.
The problem is... they are making these two so vile that one wonders if TPTB will ever / can ever let these two reform. If so, are TPTB telling us don't bother to change, its impossible?