User blog comment:FairyRaven/Fairy Tail Chapter 337: The Golden Plains, Review and Commentary/@comment-1359322-20130628150910/@comment-15267891-20130628232625

I think FT is divided into 2 parts (like OP maybe). The first is before the time-skip which ended in Tenrou Island Arc and the last part which is post time-skip. The first part has 250+ chapters so i think FT will end after maybe 500+ chapters...