User blog comment:Relaxing94/Natsu vs Lucy (sooner or later)/@comment-173.69.32.29-20140822213527/@comment-173.69.32.29-20140822224759

If either of those scenarios were to happen, I'd put my money on the latter. I don't think Mashima is going to show Gray getting outclassed in a fight against Natsu, especially with how much this Devil slaying magic has been hyped up. Gray'a new magic has to be shown as being effective in battle against a Demon.

I think Lucy might try and bring Natsu back to earth, or something like that, but that doesn't necessarily mean it will be in the form of a fight. It could be, and I'd be welcome to that idea. But as of right now, I think Gray v. Natsu will be the main event of this arc.