User blog comment:FairyRaven/Fairy Tail Chapter 453: A Father's Job, Review and Commentary/@comment-109.69.5.239-20150920151502/@comment-5268982-20150920190411

Maybe not, but her idea of One Magic will definitely play a large role in the plot (through Lucy). I can imagine Zeref being like "Don't you see? The One Magic is Darkness!" before attempting to kill her, and her being like "No, you're wrong. My mother taught me it's love" and defending herself with the One Magic.

...Wow, now I really want to see this happening :P :P