User blog comment:IamJakuhoRaikoben/Chapter 484: The Monstrous Six, Review./@comment-5708675-20160510182750/@comment-7418318-20160511133247

Mashima could also go for the Angel/Demon thing, in which case we might see a Sorano/Mirajane tag-team.

It'd be a shame to have those two only fight lieutenants instead of teaming up against an actual Spriggan, but Mashima wasn't exactly forthcoming toward Mirajane when it comes to good fights ever since the very first one against Freed.