All Good Things Must Come To An End
For JUSTIFIED, that end may come at the end of the next season.
FX head Nick Grad talked to Variety about the Elmore Leonard based series and the possibility of an ending in sight.

“As Graham [Yost, creator] has said, they went to Detroit and Florida [for season five], the two very most ‘Elmore’ kind of locations, and they were excited about Elmore would think of the episode and very sad that he’s never going to see this season. But, he’s the inspiration behind all of this,” said FX prexy Nick Grad.
Grad also said that ending “Justified” after a healthy six-season run is “the plan right now,” though that could always change given the needs of the creatives.

Season five was kicked off on Jan 7th.