User blog comment:Ncduru/Who is Anna?/@comment-26624376-20151204194121/@comment-26389992-20151204224857

Yeah it's seeming like Anna is a relative of Brandish or Zeref and Natsu, doubt it'll be Lucy cause to me it'll be dumb for her mother to be involved just to have another relative in the mix... especially one coming out of nowhere

But yeah taking the family route is the safest to me on guessing how Anna is