User blog comment:IamJakuhoRaikoben/Chapter 415: And It Shall Become Your Will To Live, Review./@comment-7418318-20150113104632/@comment-7418318-20150113111857

And to add some drama and tension, they'd think that it'd cost Lucy's life, but due to her not being weakened by sickness like her mother was, she survives it.

Maybe even turn it into a semi-reverse of what happened with Haru and Elie at the end of RAVE by having Lucy fall into a coma without anyone knowing whether she'll ever wake up again (which of course she does in the epilogue).

Wow... what a sappy theory ^^ but it just might work out.