Recently the manga author Hiro Mashima, announced an anime adaption of his manga FAIRY TAIL ZERØ, this story takes place before the Fairy Tail guild was founded.
Hiro Mashima first released the FAIRY TAIL ZERØ manga in the first issue of ‘Monthly Fairy Tail’ in July of 2014, the story ran 13 issues. The anime will premiere on January 9th, 2016.