User blog comment:FairyRaven/Fairy Tail Chapter 416: Tartarus Arc: Final Part, Review and Commentary/@comment-76.3.89.13-20150119234359/@comment-144.59.12.226-20150120023155

I think in the next chapter Lucy will meet up with Natsu at the train station. as, it is pulling away. Lucy will be crying and Yell his Name :) : Natsu... In quick run.. falls on her knees as the train puls away.. she says something like.. Natsu, I love you.... Natsu, hears this.. (motion sick) instructs Happy to fly to Lucy and stay with her and comforts Lucy while Natsu leaves to get better.....

Lucy and Happy will try to rebuild the guild hall with the money from Natsu.... and After Time skip, they will kick some Acnologia butt and then Zeref... Natsu becomes END and Lucy saves him.... As she is the girl of light and CSK kind'a already hinted that the light if intense enough can burn away all darness... "One Magic""" Root source of all majic... my prediction :)